Fujitsu ETERNUS DX100 S4 Guide

Fujitsu Storage
ETERNUS DX100 S4/DX200 S4,
ETERNUS DX100 S3/DX200 S3
Hybrid Storage Systems
Design Guide (Basic)
System configuration design
P3AM-7642-32ENZ0

Table of Contents
1. Function Overview 14
2. Basic Functions 16
RAID Functions........................................................................................................................................... 16
Supported RAID.................................................................................................................................................................... 16
User Capacity (Logical Capacity).................................................................................................................................. 22
RAID Group ........................................................................................................................................................................... 24
Volume.................................................................................................................................................................................... 26
Hot Spares ............................................................................................................................................................................. 29
Data Protection...........................................................................................................................................31
Data Block Guard ................................................................................................................................................................. 31
Disk Drive Patrol .................................................................................................................................................................. 32
Redundant Copy ................................................................................................................................................................. 33
Rebuild .................................................................................................................................................................................... 34
Fast Recovery....................................................................................................................................................................... 35
Copyback/Copybackless.................................................................................................................................................. 36
Protection (Shield).............................................................................................................................................................. 38
Reverse Cabling................................................................................................................................................................... 40
Operations Optimization (Virtualization/Automated Storage Tiering) ................................. 41
Thin Provisioning .................................................................................................................................................................. 41
Flexible Tier ........................................................................................................................................................................... 48
Extreme Cache Pool .......................................................................................................................................................... 54
Optimization of Volume Configurations...........................................................................................55
RAID Migration ......................................................................................................................................................................57
Logical Device Expansion................................................................................................................................................. 59
LUN Concatenation............................................................................................................................................................. 61
Wide Striping ........................................................................................................................................................................ 63
Data Encryption.........................................................................................................................................64
Encryption with Self Encrypting Drive (SED)............................................................................................................ 65
Firmware Data Encryption............................................................................................................................................... 66
Key Management Server Linkage ..................................................................................................................................67
User Access Management..................................................................................................................... 70
Account Management....................................................................................................................................................... 70
User Authentication ............................................................................................................................................................72
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Audit Log.................................................................................................................................................................................74
Environmental Burden Reduction....................................................................................................... 75
Eco-mode ...............................................................................................................................................................................75
Power Consumption Visualization .................................................................................................................................78
Operation Management/Device Monitoring................................................................................... 79
Operation Management Interface.................................................................................................................................79
Performance Information Management..................................................................................................................... 80
Event Notification ............................................................................................................................................................... 82
Device Time Synchronization ......................................................................................................................................... 85
Power Control ............................................................................................................................................86
Power Synchronized Unit................................................................................................................................................. 86
Remote Power Operation (Wake On LAN) ................................................................................................................87
Backup (Advanced Copy)......................................................................................................................88
Backup (SAN)........................................................................................................................................................................ 89
Performance Tuning .............................................................................................................................. 103
Striping Size Expansion ................................................................................................................................................... 103
Assigned CMs ..................................................................................................................................................................... 104
Smart Setup Wizard ...............................................................................................................................105
3. SAN Functions 110
Operations Optimization (Deduplication/Compression)...........................................................110
Deduplication/Compression .......................................................................................................................................... 110
Improving Host Connectivity.............................................................................................................. 120
Host Affinity ........................................................................................................................................................................ 120
iSCSI Security.......................................................................................................................................................................122
Stable Operation via Load Control................................................................................................... 122
Quality of Service (QoS) ..................................................................................................................................................122
Host Response ....................................................................................................................................................................124
Storage Cluster...................................................................................................................................................................125
Data Migration.......................................................................................................................................... 129
Storage Migration ..............................................................................................................................................................129
Non-disruptive Storage Migration .....................................................................................................131
Server Linkage Functions..................................................................................................................... 133
Oracle VM Linkage ............................................................................................................................................................133
VMware Linkage ................................................................................................................................................................ 134
Table of Contents
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Veeam Storage Integration........................................................................................................................................... 140
Microsoft Linkage.............................................................................................................................................................. 143
OpenStack Linkage .......................................................................................................................................................... 144
Logical Volume Manager (LVM) .................................................................................................................................. 145
4. Connection Configuration 146
SAN Connection...................................................................................................................................... 146
Host Interface..................................................................................................................................................................... 146
Access Method................................................................................................................................................................... 149
Remote Connections............................................................................................................................. 152
Remote Interfaces............................................................................................................................................................ 153
Connectable Models........................................................................................................................................................ 155
LAN Connection ...................................................................................................................................... 156
LAN for Operation Management (MNT Port)......................................................................................................... 156
LAN for Remote Support (RMT Port) ........................................................................................................................ 158
LAN Control (Master CM/Slave CM) ........................................................................................................................... 161
Network Communication Protocols ...........................................................................................................................163
Power Supply Connection ................................................................................................................... 164
Input Power Supply Lines............................................................................................................................................... 164
UPS Connection................................................................................................................................................................. 165
Power Synchronized Connections.................................................................................................... 166
Power Synchronized Connections (PWC)................................................................................................................ 166
Power Synchronized Connections (Wake On LAN) ............................................................................................. 169
5. Hardware Configurations 170
Configuration Schematics ................................................................................................................... 170
Optional Product Installation Conditions........................................................................................177
Controller Module.............................................................................................................................................................. 177
Memory Extension ............................................................................................................................................................. 178
Host Interfaces.................................................................................................................................................................... 179
Unified License................................................................................................................................................................... 180
Drive Enclosures ................................................................................................................................................................. 181
I/O Module............................................................................................................................................................................ 181
Drives..................................................................................................................................................................................... 182
Standard Installation Rules.................................................................................................................. 185
Controller Module............................................................................................................................................................. 185
Table of Contents
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Host Interface..................................................................................................................................................................... 186
Drive Enclosure ................................................................................................................................................................... 187
I/O Module........................................................................................................................................................................... 188
Drive....................................................................................................................................................................................... 188
Recommended RAID Group Configurations ................................................................................ 192
6. Maintenance/Expansion 195
Hot Swap/Hot Expansion ..................................................................................................................... 195
User Expansion......................................................................................................................................... 198
Drive Sanitization..................................................................................................................................... 198
A. Function Specification List 199
List of Supported Protocols ................................................................................................................ 199
Target Pool for Each Function/Volume List ................................................................................. 200
Target RAID Groups/Pools of Each Function......................................................................................................... 200
Target Volumes of Each Function............................................................................................................................... 201
Combinations of Functions That Are Available for Simultaneous Executions ................ 203
Combinations of Functions That Are Available for Simultaneous Executions............................................203
Number of Processes That Can Be Executed Simultaneously.........................................................................205
Capacity That Can Be Processed Simultaneously ................................................................................................205
Table of Contents
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List of Figures
Figure 1 RAID0 Concept ...................................................................................................................................................... 17
Figure 2 RAID1 Concept ....................................................................................................................................................... 17
Figure 3 RAID1+0 Concept.................................................................................................................................................. 18
Figure 4 RAID5 Concept....................................................................................................................................................... 18
Figure 5 RAID5+0 Concept ................................................................................................................................................. 19
Figure 6 RAID6 Concept...................................................................................................................................................... 20
Figure 7 RAID6-FR Concept................................................................................................................................................ 21
Figure 8 Example of a RAID Group.................................................................................................................................. 25
Figure 9 Volume Concept................................................................................................................................................... 26
Figure 10 Hot Spares............................................................................................................................................................... 29
Figure 11 Data Block Guard................................................................................................................................................... 31
Figure 12 Disk Drive Patrol.................................................................................................................................................... 32
Figure 13 Redundant Copy Function................................................................................................................................ 33
Figure 14 Rebuild...................................................................................................................................................................... 34
Figure 15 Fast Recovery ........................................................................................................................................................ 35
Figure 16 Copyback................................................................................................................................................................. 36
Figure 17 Copybackless..........................................................................................................................................................37
Figure 18 Protection (Shield) ............................................................................................................................................... 38
Figure 19 Reverse Cabling .................................................................................................................................................... 40
Figure 20 Storage Capacity Virtualization....................................................................................................................... 42
Figure 21 TPV Balancing (When Allocating Disproportionate TPV Physical Capacity Evenly)................... 45
Figure 22 TPV Balancing (When Distributing Host Accesses Evenly after TPP Expansion) ......................... 45
Figure 23 TPV/FTV Capacity Optimization ......................................................................................................................47
Figure 24 Flexible Tier............................................................................................................................................................. 49
Figure 25 FTV Configuration ................................................................................................................................................ 50
Figure 26 FTRP Balancing...................................................................................................................................................... 53
Figure 27 Extreme Cache Pool............................................................................................................................................ 54
Figure 28 RAID Migration (When Data Is Migrated to a High Capacity Drive) ...................................................57
Figure 29 RAID Migration (When a Volume Is Moved to a Different RAID Level).............................................57
Figure 30 RAID Migration....................................................................................................................................................... 58
Figure 31 Logical Device Expansion (When Expanding the RAID Group Capacity)........................................ 59
Figure 32 Logical Device Expansion (When Changing the RAID Level) .............................................................. 59
Figure 33 LUN Concatenation .............................................................................................................................................. 61
Figure 34 LUN Concatenation (Volume Concatenation)........................................................................................... 62
Figure 35 Wide Striping.......................................................................................................................................................... 63
Figure 36 Data Encryption with Self Encrypting Drives (SED)................................................................................. 65
Figure 37 Firmware Data Encryption................................................................................................................................. 66
Figure 38 Key Management Server Linkage................................................................................................................... 68
Figure 39 Account Management ........................................................................................................................................ 70
Figure 40 Audit Log ..................................................................................................................................................................74
Figure 41 Eco-mode.................................................................................................................................................................75
Figure 42 Power Consumption Visualization...................................................................................................................78
Figure 43 Event Notification................................................................................................................................................. 82
Figure 44 Device Time Synchronization........................................................................................................................... 85
Figure 45 Power Synchronized Unit .................................................................................................................................. 86
Figure 46 Wake On LAN..........................................................................................................................................................87
Figure 47 Example of Advanced Copy............................................................................................................................. 88
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Figure 48 REC ............................................................................................................................................................................. 91
Figure 49 Restore OPC........................................................................................................................................................... 94
Figure 50 EC or REC Reverse............................................................................................................................................... 94
Figure 51 Targets for the Multi-Copy Function............................................................................................................. 95
Figure 52 Multi-Copy............................................................................................................................................................... 95
Figure 53 Multi-Copy (Including SnapOPC+) ................................................................................................................ 96
Figure 54 Multi-Copy (Using the Consistency Mode)................................................................................................. 96
Figure 55 Multi-Copy (Case 1: When Performing a Cascade Copy for an REC Session in Consistency
Mode).........................................................................................................................................................................97
Figure 56 Multi-Copy (Case 2: When Performing a Cascade Copy for an REC Session in Consistency
Mode).........................................................................................................................................................................97
Figure 57 Cascade Copy........................................................................................................................................................ 98
Figure 58 Cascade Copy (Using Three Copy Sessions) ........................................................................................... 102
Figure 59 Cascade Copy (Using Four Copy Sessions).............................................................................................. 102
Figure 60 Assigned CMs....................................................................................................................................................... 104
Figure 61 RAID Configuration Example (When 12 SSDs Are Installed) ...............................................................107
Figure 62 RAID Configuration Example (When 15 SAS Disks Are Installed)..................................................... 109
Figure 63 Deduplication/Compression Overview......................................................................................................... 111
Figure 64 Deduplication Overview..................................................................................................................................... 111
Figure 65 Compression Overview ..................................................................................................................................... 112
Figure 66 Details of the Deduplication/Compression Function..............................................................................117
Figure 67 Host Affinity.......................................................................................................................................................... 120
Figure 68 Associating Host Groups, CA Port Groups, and LUN Groups ............................................................. 121
Figure 69 QoS ...........................................................................................................................................................................122
Figure 70 Copy Path Bandwidth Limit.............................................................................................................................123
Figure 71 Host Response......................................................................................................................................................124
Figure 72 Storage Cluster ....................................................................................................................................................125
Figure 73 Mapping TFOVs, TFO Groups, and CA Port Pairs ....................................................................................126
Figure 74 Storage Migration............................................................................................................................................... 130
Figure 75 Non-disruptive Storage Migration................................................................................................................. 131
Figure 76 Oracle VM Linkage..............................................................................................................................................133
Figure 77 VMware Linkage.................................................................................................................................................. 134
Figure 78 VVOL (Operational Configuration) ...............................................................................................................136
Figure 79 VVOL (System Configuration) ........................................................................................................................ 137
Figure 80 Veeam Storage Integration ............................................................................................................................ 140
Figure 81 Microsoft Linkage............................................................................................................................................... 143
Figure 82 Logical Volume Manager (LVM).................................................................................................................... 145
Figure 83 Single Path Connection (When a SAN Connection Is Used — Direct Connection)................... 149
Figure 84 Single Path Connection (When a SAN Connection Is Used — Switch Connection) ................. 149
Figure 85 Multipath Connection (When a SAN Connection Is Used — Basic Connection Configuration)..
................................................................................................................................................................................... 150
Figure 86 Multipath Connection (When a SAN Connection Is Used — Switch Connection)..................... 150
Figure 87 Multipath Connection (When a SAN Connection Is Used — for Enhanced Performance)...... 151
Figure 88 Example of Non-Supported Connection Configuration (When Multiple Types of Remote In-
terfaces Are Installed in the Same ETERNUS DX/AF)............................................................................152
Figure 89 Example of Supported Connection Configuration (When Multiple Types of Remote Interfa-
ces Are Installed in the Same ETERNUS DX/AF)......................................................................................152
Figure 90 An FC Connection for a Remote Copy between ETERNUS DX/AF Storage Systems (When
Redundant Paths Are Used) ........................................................................................................................... 153
Figure 91 An FC Connection for a Remote Copy between ETERNUS DX/AF Storage Systems (When
Lines Are Used) ................................................................................................................................................... 153
List of Figures
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Figure 92 An iSCSI Connection for a Remote Copy between ETERNUS DX/AF Storage Systems (When
Lines Are Used) ................................................................................................................................................... 154
Figure 93 Connection Example without a Dedicated Remote Support Port....................................................157
Figure 94 Connection Example When the IP Address of the Slave CM Is Set (and a Dedicated Remote
Support Port Is Not Used)................................................................................................................................ 157
Figure 95 Overview of the AIS Connect Function...................................................................................................... 158
Figure 96 Security Features ................................................................................................................................................ 159
Figure 97 Connection Example with a Dedicated Remote Support Port ......................................................... 160
Figure 98 Connection Example When the IP Address of the Slave CM Is Set (and a Dedicated Remote
Support Port Is Used)......................................................................................................................................... 161
Figure 99 LAN Control (Switching of the Master CM)...............................................................................................162
Figure 100 LAN Control (When the IP Address of the Slave CM Is Set) ...............................................................162
Figure 101 Power Supply Control Using a Power Synchronized Unit (When Connecting One or Two
Servers)................................................................................................................................................................... 166
Figure 102 Power Supply Control Using a Power Synchronized Unit (When Connecting Three or More
Servers)................................................................................................................................................................... 168
Figure 103 Power Supply Control Using Wake On LAN............................................................................................. 169
Figure 104 Minimum Configuration Diagram: ETERNUS DX100 S4/DX200 S4 ...................................................170
Figure 105 Minimum Configuration Diagram: ETERNUS DX100 S3/DX200 S3 ....................................................171
Figure 106 Maximum Configuration Diagram: ETERNUS DX100 S4/DX200 S4 .................................................. 172
Figure 107 Maximum Configuration Diagram: ETERNUS DX100 S3/DX200 S3 ..................................................174
Figure 108 Enclosure Connection Path (When Only One Controller Is Installed).............................................176
Figure 109 Enclosure Connection Path (When Two Controllers Are Installed) .................................................176
Figure 110 Controller Installation Order .......................................................................................................................... 185
Figure 111 Installation Diagram for Host Interfaces (When Only One Controller Is Installed) ................... 186
Figure 112 Host Interface Installation Diagram 1 (When Two Controllers Are Installed in the ETERNUS
DX100 S4/DX100 S3).......................................................................................................................................... 186
Figure 113 Host Interface Installation Diagram 2 (When Two Controllers Are Installed in the ETERNUS
DX100 S4/DX100 S3).......................................................................................................................................... 186
Figure 114 Host Interface Installation Diagram (When Two Controllers Are Installed in the ETERNUS
DX200 S4/DX200 S3) .........................................................................................................................................187
Figure 115 I/O Module Installation Order ........................................................................................................................ 188
Figure 116 Drive Installation Diagram for High-Density Drive Enclosures .......................................................... 189
Figure 117 Installation Diagram for 2.5" Drives.............................................................................................................. 190
Figure 118 Installation Diagram for 3.5" Drives............................................................................................................... 191
Figure 119 Drive Combination 1 ...........................................................................................................................................192
Figure 120 Drive Combination 2...........................................................................................................................................192
Figure 121 Drive Combination 3...........................................................................................................................................193
Figure 122 Drive Combination 4...........................................................................................................................................193
Figure 123 Drive Combination 5.......................................................................................................................................... 194
List of Figures
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List of Tables
Table 1 Basic Functions....................................................................................................................................................... 14
Table 2 SAN Functions......................................................................................................................................................... 15
Table 3 RAID Level Comparison ...................................................................................................................................... 21
Table 4 Formula for Calculating User Capacity for Each RAID Level ............................................................... 22
Table 5 User Capacity per Drive ..................................................................................................................................... 23
Table 6 RAID Group Types and Usage ......................................................................................................................... 24
Table 7 Number of Drives to Configure and the Recommended Number of Drives per RAID Group .....
..................................................................................................................................................................................... 25
Table 8 Number of Volumes That Can Be Created..................................................................................................27
Table 9 Volumes That Can Be Created .........................................................................................................................27
Table 10 Hot Spare Installation Conditions................................................................................................................... 29
Table 11 Hot Spare Selection Criteria............................................................................................................................. 30
Table 12 TPP Maximum Number and Capacity........................................................................................................... 42
Table 13 Chunk Size According to the Configured TPP Capacity........................................................................ 43
Table 14 Levels and Configurations for a RAID Group That Can Be Registered in a TPP........................... 43
Table 15 TPP Thresholds...................................................................................................................................................... 44
Table 16 TPV Thresholds...................................................................................................................................................... 44
Table 17 Chunk Size and Data Transfer Unit ............................................................................................................... 49
Table 18 The Maximum Number and the Maximum Capacity of FTSPs .............................................................51
Table 19 Levels and Configurations for a RAID Group That Can Be Registered in a FTSP..........................51
Table 20 FTRP Thresholds ................................................................................................................................................... 52
Table 21 FTV Thresholds...................................................................................................................................................... 52
Table 22 Optimization of Volume Configurations...................................................................................................... 55
Table 23 Functional Comparison between the SED Authentication Key (Common Key) and Key Man-
agement Server Linkage.................................................................................................................................... 68
Table 24 Available Functions for Default Roles............................................................................................................ 71
Table 25 Client Public Key (SSH Authentication).........................................................................................................72
Table 26 Eco-mode Specifications....................................................................................................................................76
Table 27 Levels and Contents of Events That Are Notified.................................................................................... 82
Table 28 SNMP Specifications............................................................................................................................................ 83
Table 29 Control Software (Advanced Copy).............................................................................................................. 88
Table 30 List of Functions (Copy Methods) .................................................................................................................. 89
Table 31 Characteristics of SnapOPC/SnapOPC+ Operations with Each Type of Copy Destination Log-
ical Volume ............................................................................................................................................................. 90
Table 32 REC Data Transfer Mode ................................................................................................................................... 92
Table 33 Available Cascade Copy Combinations (When a Cascade Copy Performs Session 1 Followed
by Session 2)........................................................................................................................................................... 98
Table 34 Modified Data Size for Each QuickOPC Resolution................................................................................. 99
Table 35 Available Cascade Copy Combinations (When a Cascade Copy Performs Session 2 Followed
by Session 1) ......................................................................................................................................................... 100
Table 36 Available Stripe Depth...................................................................................................................................... 103
Table 37 Guideline for the Number of Drives and User Capacities (When 1.92TB SSDs Are Installed) ......
................................................................................................................................................................................... 105
Table 38 Guideline for the Number of Drives and User Capacities (When 1.2TB SAS Disks Are Installed)
....................................................................................................................................................................................107
Table 39 Deduplication/Compression Function Specifications............................................................................ 112
Table 40 Method for Enabling the Deduplication/Compression Function....................................................... 114
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Table 41 Volumes That Are to Be Created depending on the Selection of "Deduplication" and "Com-
pression" ................................................................................................................................................................. 115
Table 42 Deduplication/Compression Setting for TPPs Where the Target Volumes Can Be Created.. 115
Table 43 Management Functions for Deduplication/Compression Volumes.................................................. 118
Table 44 Storage Cluster Function Specifications.....................................................................................................126
Table 45 Specifications for Paths and Volumes between the Local Storage System and the External
Storage System .................................................................................................................................................... 131
Table 46 Maximum VVOL Capacity................................................................................................................................ 138
Table 47 VVOL Management Information Specifications ..................................................................................... 138
Table 48 Volume Types That Can Be Used with Veeam Storage Integration ................................................142
Table 49 Ethernet Frame Capacity (Jumbo Frame Settings).................................................................................147
Table 50 Connectable Models and Available Remote Interfaces ...................................................................... 155
Table 51 LAN Port Availability...........................................................................................................................................163
Table 52 Number of Installable Drive Enclosures...................................................................................................... 181
Table 53 Drive Characteristics ......................................................................................................................................... 184
Table 54 Number of Installable Drives.......................................................................................................................... 185
Table 55 Hot Swap and Hot Expansion Availability for Components (ETERNUS DX100 S4/DX200 S4).....
................................................................................................................................................................................... 195
Table 56 Hot Swap and Hot Expansion Availability for Components (ETERNUS DX100 S3/DX200 S3) .....
.................................................................................................................................................................................... 197
Table 57 List of Supported Protocols............................................................................................................................ 199
Table 58 Combinations of Functions That Can Be Executed Simultaneously (1/2)......................................203
Table 59 Combinations of Functions That Can Be Executed Simultaneously (2/2) .....................................204
List of Tables
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Preface
Fujitsu would like to thank you for purchasing the Fujitsu Storage ETERNUS DX100 S4/DX200 S4,
ETERNUS DX100 S3/DX200 S3 (hereinafter collectively referred to as ETERNUS DX).
The ETERNUS DX is designed to be connected to Fujitsu servers (Fujitsu SPARC Servers, PRIME-
QUEST, PRIMERGY, and other servers) or non-Fujitsu servers.
This manual provides the system design information for the ETERNUS DX storage systems.
This manual is intended for use of the ETERNUS DX in regions other than Japan.
This manual applies to the latest controller firmware version.
Thirty-Second Edition
July 2023
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Trademarks
Third-party trademark information related to this product is available at:
https://www.fujitsu.com/global/products/computing/storage/eternus/trademarks.html
About This Manual
Intended Audience
This manual is intended for field engineers or system administrators who design ETERNUS DX sys-
tems or use the ETERNUS DX.
Related Information and Documents
The latest version of this manual and the latest information for your model are available at:
https://www.fujitsu.com/global/support/products/computing/storage/manuals-list.html
Refer to the following manuals of your model as necessary:
"Overview"
"Site Planning Guide"
"Product List"
"Configuration Guide (Basic)"
"Configuration Guide -Server Connection-"
"Configuration Guide (Web GUI)"
"ETERNUS Web GUI User's Guide"
"ETERNUS CLI User's Guide"
Document Conventions
■Third-Party Product Names
•Oracle Solaris may be referred to as "Solaris", "Solaris Operating System", or "Solaris OS".
•Microsoft® Windows Server® may be referred to as "Windows Server".
■Notice Symbols
The following notice symbols are used in this manual:
Indicates information that you need to observe when using the ETERNUS stor-
age system. Make sure to read the information.
Indicates information and suggestions that supplement the descriptions included
in this manual.
Preface
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Warning Signs
Warning signs are shown throughout this manual in order to prevent injury to the user and/or mate-
rial damage. These signs are composed of a symbol and a message describing the recommended
level of caution. The following explains the symbol, its level of caution, and its meaning as used in
this manual.
This symbol indicates the possibility of serious or fatal injury if the ETERNUS DX
is not used properly.
This symbol indicates the possibility of minor or moderate personal injury, as well
as damage to the ETERNUS DX and/or to other users and their property, if the
ETERNUS DX is not used properly.
This symbol indicates IMPORTANT information for the user to note when using
the ETERNUS DX.
The following symbols are used to indicate the type of warnings or cautions being described.
The triangle emphasizes the urgency of the WARNING and CAUTION con-
tents. Inside the triangle and above it are details concerning the symbol (e.g.
Electrical Shock).
The barred "Do Not..." circle warns against certain actions. The action which
must be avoided is both illustrated inside the barred circle and written above it
(e.g. No Disassembly).
The black "Must Do..." circle indicates actions that must be taken. The re-
quired action is both illustrated inside the black disk and written above it (e.g.
Unplug).
How Warnings are Presented in This Manual
A message is written beside the symbol indicating the caution level. This message is marked with a
vertical ribbon in the left margin, to distinguish this warning from ordinary descriptions.
A display example is shown here.
Warning level indicator
Warning type indicator
Warning details
•To avoid damaging the ETERNUS storage system, pay attention to
the following points when cleaning the ETERNUS storage system:
Warning layout ribbon
Example warning
- Make sure to disconnect the power when cleaning.
- Be careful that no liquid seeps into the ETERNUS storage system
when using cleaners, etc.
- Do not use alcohol or other solvents to clean the ETERNUS
storage system.
CAUTION Do
Preface
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1. Function Overview
The ETERNUS DX provides various functions to ensure data integrity, enhance security, reduce cost,
and optimize the overall performance of the system.
The ETERNUS DX integrates block data (SAN area) and file data (NAS area) in a single device and
also provides advanced functions according to each connection.
These functions enable to respond to problems from various situations.
The ETERNUS DX has functions such as the SAN function (supports block data access), the NAS
function (supports file data access), and basic functions that can be used without needing to rec-
ognize the SAN or the NAS connection.
For more details about the basic functions, refer to "2. Basic Functions" (page 16). For more details
about the functions that are used for a SAN connection, refer to "3. SAN Functions" (page 110).
Table 1 Basic Functions
Overview Function
Data protection
Functions that ensure data integrity to improve data reli-
ability.
It is possible to detect and fix drive failures early.
"Data Block Guard" (page 31)
"Disk Drive Patrol" (page 32)
"Redundant Copy" (page 33)
"Rebuild" (page 34)
"Fast Recovery" (page 35)
"Copyback/Copybackless" (page 36)
"Protection (Shield)" (page 38)
"Reverse Cabling" (page 40)
Resource utilization (virtualization/Automated Storage
Tiering)
Functions that deliver effective resource utilization.
"Thin Provisioning" (page 41)
"Flexible Tier" (page 48)
"Extreme Cache Pool" (page 54)
•Data capacity expansion
Functions that expand or relocate a RAID group or a
volume in order to flexibly meet any increases in the
amount of data.
•Guarantee of performance
A function that creates a volume that is striped in mul-
tiple RAID groups in order to improve performance.
"RAID Migration" (page 57)
"Logical Device Expansion" (page 59)
"LUN Concatenation" (page 61)
"Wide Striping" (page 63)
Security measures (data encryption)
Functions that encrypt data in the drive media to pre-
vent the data from being fraudulently decoded.
"Encryption with Self Encrypting Drive (SED)" (page 65)
"Firmware Data Encryption" (page 66)
"Key Management Server Linkage" (page 67)
Security measures (user access management)
Functions to prevent information leakage that are
caused by a malicious access.
"Account Management" (page 70)
"User Authentication" (page 72)
"Audit Log" (page 74)
Environmental burden reduction
Functions that adjust the operating time and the envi-
ronment of the installation location in order to reduce
power consumption.
"Eco-mode" (page 75)
"Power Consumption Visualization" (page 78)
Operation management (device monitoring)
Function that reduce load on the system administrator,
and that improve system stability and increase operat-
ing ratio of the system.
"Operation Management Interface" (page 79)
"Performance Information Management" (page 80)
"Event Notification" (page 82)
"Device Time Synchronization" (page 85)
Power control
Power control functions that are used to link power-on
and power-off operations with servers and perform
scheduled operations.
"Power Synchronized Unit" (page 86)
"Remote Power Operation (Wake On LAN)" (page 87)
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Overview Function
•High-speed backup
•Continuous business
Data can be duplicated at any point without affecting
other operations.
"Backup (SAN)" (page 89)
Performance tuning
A function that can perform tuning in order to improve
performance.
"Striping Size Expansion" (page 103)
"Assigned CMs" (page 104)
Simple configuration
A wizard that simplifies the configuration of Thin Provi-
sioning.
"Smart Setup Wizard" (page 105)
Table 2 SAN Functions
Overview Function
Operations Optimization (Deduplication/Compression)
A function that eliminates duplicated data and com-
presses the data to reduce the amount of written data.
"Deduplication/Compression" (page 110)
Security measures (unauthorized access prevention)
Functions that prevent unintentional storage access.
"Host Affinity" (page 120)
"iSCSI Security" (page 122)
Stable operation
For stable operation of server connections, the appro-
priate response action and the processing priority can
be specified for each server.
If an error occurs in the storage system during opera-
tions, the connected storage system is switched auto-
matically and operations can continue.
"Quality of Service (QoS)" (page 122)
"Host Response" (page 124)
"Storage Cluster" (page 125)
Data relocation
A function that migrates data between ETERNUS stor-
age systems.
"Storage Migration" (page 129)
Non-disruptive data relocation
A function that migrates data between ETERNUS stor-
age systems without stopping the business server.
"Non-disruptive Storage Migration" (page 131)
Information linkage (function linkage with servers)
Functions that cooperate with a server to improve per-
formance in a virtualized environment. Beneficial effects
such as centralized management of the entire storage
system and a reduction of the load on servers can be re-
alized.
"Oracle VM Linkage" (page 133)
"VMware Linkage" (page 134)
"Veeam Storage Integration" (page 140)
"Microsoft Linkage" (page 143)
"OpenStack Linkage" (page 144)
"Logical Volume Manager (LVM)" (page 145)
1. Function Overview
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2. Basic Functions
This chapter describes the functions that control the storage system.
RAID Functions
This section explains the points to note before configuring a system using the ETERNUS DX.
Supported RAID
The ETERNUS DX supports the following RAID levels.
•RAID0 (striping)
•RAID1 (mirroring)
•RAID1+0 (striping of pairs of drives for mirroring)
•RAID5 (striping with distributed parity)
•RAID5+0 (double striping with distributed parity)
•RAID6 (striping with double distributed parity)
•RAID6-FR (provides the high speed rebuild function, and striping with double distributed parity)
Remember that a RAID0 configuration is not redundant. This means that if a RAID0 drive fails,
the data will not be recoverable.
This section explains the concepts and purposes (RAID level selection criteria) of the supported
RAID levels.
When Nearline SAS disks that have 6TB or more are used, the available RAID levels are RAID0,
RAID1, RAID6, and RAID6-FR.
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■RAID Level Concept
A description of each RAID level is shown below.
●RAID0 (Striping)
Data is split in unit of blocks and stored across multiple drives.
Figure 1 RAID0 Concept
A
C
B
D
Data writing request
Drive#0 Drive#1
A B C D
●RAID1 (Mirroring)
The data is stored on two duplicated drives at the same time.
If one drive fails, other drive continues operation.
Figure 2 RAID1 Concept
A
B
C
D
A B C D
Data writing request
A
B
C
D
Drive#0 Drive#1
2. Basic Functions
RAID Functions
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●RAID1+0 (Striping of Pairs of Drives for Mirroring)
RAID1+0 combines the high I/O performance of RAID0 (striping) with the reliability of RAID1 (mir-
roring).
Figure 3 RAID1+0 Concept
Drive#3
Drive#7
D
D'
Drive#2
Drive#6
C
C'
Drive#1
Drive#5
B
B'
Drive#0
Drive#4
A
A'
Striping (RAID0)
Mirroring (RAID1)
Data writing request
A B C D
Mirroring
Mirroring
Mirroring
Mirroring
●RAID5 (Striping with Distributed Parity)
Data is divided into blocks and allocated across multiple drives together with parity information
created from the data in order to ensure the redundancy of the data.
Figure 4 RAID5 Concept
A
E
I
M
AB C D
Data writing request
B
F
J
PM, N, O, P
C
G
PI, J, K, L
N
D
PE, F, G, H
K
O
H
L
P
Create
parity data
PA, B, C, D
A B DC
Drive#0 Drive#1 Drive#2 Drive#3 Drive#4
Parity for data A to D: P A, B, C, D
Parity for data E to H: P E, F, G, H
Parity for data I to L: P I, J, K, L
Parity for data M to P: P M, N, O, P
2. Basic Functions
RAID Functions
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●RAID5+0 (Double Striping with Distributed Parity)
Multiple RAID5 volumes are RAID0 striped. For large capacity configurations, RAID5+0 provides
better performance, better reliability, and shorter rebuilding times than RAID5.
Figure 5 RAID5+0 Concept
Striping with
distributed parity (RAID5)
Striping (RAID0)
A
E
B
I
F
PA, B
PM, N
C
G H
PC, D
PO, P
Drive#0 Drive#1 Drive#2 Drive#3 Drive#4 Drive#5
D
K
PK, L
Striping (RAID0)
Striping with
distributed parity
(RAID5)
JL
MNOP
PE, F
PI, J
PG, H
RAID5 RAID5
A B Create
parity data DCreate parity data
C
Data writing request
A
B
C
D
A B C D
A B C D
2. Basic Functions
RAID Functions
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●RAID6 (Striping with Double Distributed Parity)
Allocating two different parities on different drives (double parity) makes it possible to recover
from up to two drive failures.
Figure 6 RAID6 Concept
P2 M, N, O, P
P2 I, J, K, L
A
E
I
M
A B C D
Data writing request
B
F
J
P1 M, N, O, P
C
G
P1 I, J, K, L
D
P1 E, F, G, H P2 E, F, G, H
N
K
O
P1 A, B, C, D
H
L
P
P2 A, B, C, D
A B DC Create parity data
Drive#0 Drive#1 Drive#2 Drive#3 Drive#4 Drive#5
Parity for data A to D: P1 A, B, C, D and P2 A, B, C, D
Parity for data E to H: P1 E, F, G, H and P2 E, F, G, H
Parity for data I to L: P1 I, J, K, L and P2 I, J, K, L
Parity for data M to P: P1 M, N, O, P and P2 M, N, O, P
2. Basic Functions
RAID Functions
20
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