Fujitsu ETERNUS DX Disk User manual

FUJITSU Storage
ETERNUS DX, ETERNUS AF
Configuration Guide -Server Connection-
(iSCSI) for Oracle Solaris
P3AM-4042-18ENZ0

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Preface
This manual briefly explains the operations that need to be performed by the user in order to connect an
ETERNUS DX/AF to a server running Solaris OS via an iSCSI interface.
This manual should be used in conjunction with any other applicable user manuals, such as those for the
ETERNUS DX/AF, server, OS, LAN cards, and drivers.
Refer to "Configuration Guide -Server Connection- Notations" for the notations used in this manual such as
product trademarks and product names. For storage systems that are supported by the OS, refer to the Server
Support Matrix of the ETERNUS DX/AF.
18th Edition
May 2017
The Contents and Structure of this Manual
This manual is composed of the following ten chapters.
•"Chapter 1 Workflow" (page 6)
This chapter describes how to connect the ETERNUS DX/AF to a server.
•"Chapter 2 Checking the Server Environment" (page 8)
This chapter describes which servers can be connected to ETERNUS DX/AF storage systems.
•"Chapter 3 Notes" (page 9)
This chapter describes issues that should be noted when connecting the ETERNUS DX/AF storage systems
and server.
•"Chapter 4 Checking the Server Information" (page 13)
This chapter describes how to check the server information registered in the ETERNUS DX/AF.
•"Chapter 5 Installing and Setting Up ETERNUSmgr" (page 14)
This chapter describes how to install ETERNUSmgr.
•"Chapter 6 Setting Up the ETERNUS DX/AF" (page 15)
This chapter describes how to use ETERNUS Web GUI or ETERNUSmgr to set up the ETERNUS DX/AF storage
systems.
•"Chapter 7 Installing the iSCSI Software Initiator and Setting Up the Server" (page 16)
This chapter describes how to install the iSCSI Software Initiator and set up the server.
•"Chapter 8 Checking Connections" (page 23)
This chapter describes how to check the connection status between the server and ETERNUS DX/AF.
•"Chapter 9 Setting the Multipaths" (page 24)
This chapter describes what to be set in order to create multipath environment.
•"Chapter 10 Setting a File System" (page 26)
This chapter describes how to create a file system.
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Table of Contents
Chapter 1 Workflow 6
Chapter 2 Checking the Server Environment 8
2.1 Hardware ....................................................................................................................................... 8
2.2 OS (Operating System)................................................................................................................... 8
2.3 Network Interface Card................................................................................................................... 8
2.4 Multipath Configuration................................................................................................................. 8
Chapter 3 Notes 9
3.1 LAN Environment Notes ................................................................................................................. 9
3.2 Server Startup and Power Supply Control Notes............................................................................ 12
3.3 Jumbo Frame Setting Notes.......................................................................................................... 12
3.4 Notes on Configuring an iSCSI Boot Environment......................................................................... 12
Chapter 4 Checking the Server Information 13
Chapter 5 Installing and Setting Up ETERNUSmgr 14
Chapter 6 Setting Up the ETERNUS DX/AF 15
Chapter 7 Installing the iSCSI Software Initiator and Setting Up the Server 16
7.1 Installing the iSCSI Software Initiator ........................................................................................... 16
7.2 Setting Up the Server.................................................................................................................... 16
7.2.1 Setting Up the Command Queue Depth ..............................................................................................................16
7.2.2 iSCSI Basic Settings .............................................................................................................................................18
7.2.3 Server Settings when CHAP Authentication is Used.............................................................................................19
7.2.4 Server Settings when Bidirectional CHAP Authentication is Used........................................................................21
Chapter 8 Checking Connections 23
8.1 Turning on the Devices................................................................................................................. 23
8.2 Setting Up the Server to Recognize the Logical Units ................................................................... 23
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Chapter 9 Setting the Multipaths 24
9.1 Enabling MPxIO............................................................................................................................ 24
9.2 Editing "/kernel/drv/scsi_vhci.conf" ............................................................................................... 24
9.3 Reconfiguring and Restarting the Server ...................................................................................... 25
Chapter 10 Setting a File System 26
Table of Contents
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Chapter 1
Workflow
Exactly which documents are required depends on the connection environment, see the "Workflow" section
that follows for details.
IPv4 is used for IP address examples in this manual.
Required Documents
•"Server Support Matrix"
•"Configuration Guide -Server Connection- Storage System Settings" that corresponds to the ETERNUS DX/AF
to be connected
•"ETERNUS Web GUI User's Guide"
•"ETERNUSmgr Install Guide"
•"ETERNUSmgr User Guide"
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Workflow
Installing ETERNUSmgr and Setting Up the ETERNUS DX/AF
If ETERNUSmgr is to be used, install it and set up the ETERNUS DX/AF.
•"Chapter 4 Checking the Server Information" (page 13)
•"Chapter 5 Installing and Setting Up ETERNUSmgr" (page 14)
•"Chapter 6 Setting Up the ETERNUS DX/AF" (page 15)
•Checking the setup and maintenance operations
-"ETERNUS Web GUI User's Guide"
-"ETERNUSmgr Install Guide"
-"ETERNUSmgr User Guide"
•Setting up the ETERNUS DX/AF
-"Configuration Guide -Server Connection- Storage System Settings" that corresponds to the ETER-
NUS DX/AF to be connected
Installing the iSCSI Software Initiator and Setting Up the Server
Set up the OS to connect to the ETERNUS DX/AF.
•"Chapter 7 Installing the iSCSI Software Initiator and Setting Up the Server" (page 16)
Setting Up the Server to Recognize the Logical Units
Set up the server so that it can recognize the LUNs (logical unit numbers) of the ETERNUS DX/AF.
•"8.2 Setting Up the Server to Recognize the Logical Units" (page 23)
Configuring the System
Set up the server as required by the system configuration.
•Setting the multipaths
-"9.1 Enabling MPxIO" (page 24)
•Setting a file system
-"Chapter 10 Setting a File System" (page 26)
Chapter 1 Workflow
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Chapter 2
Checking the Server Environment
Connection to servers is possible in the following environments.
Check the "Server Support Matrix" for server environment conditions.
2.1 Hardware
Refer to the "Server Support Matrix".
2.2 OS (Operating System)
Refer to the "Server Support Matrix".
2.3 Network Interface Card
Refer to the "Server Support Matrix".
2.4 Multipath Configuration
Refer to the "Server Support Matrix".
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Chapter 3
Notes
Note the following issues when connecting the ETERNUS DX/AF to a server.
3.1 LAN Environment Notes
•The ETERNUS DX/AF can be connected to a server via an existing LAN. However, a decrease in LAN perform-
ance may be observed by prior users of said LAN.
•For the iSCSI LAN (used to transfer data), do not set multipath configuration with IP Network Multipathing
(IPMP).
•Since an iSCSI LAN handles large amounts of data (traffic volumes) like an FC-SAN, the iSCSI LAN must have
its own switch and be a dedicated LAN that is separate from the business LANs.
•For IP network security, separate the iSCSI LAN from the management LAN (for administration).
•The iSCSI LAN must be configured as a dedicated LAN for each path from a server to the ETERNUS DX/AF.
•A configuration where multiple LAN ports of a single server are connected to the same network may be
restricted depending on the OS and/or driver specifications. For a multipath connection, connect each path
using different LAN segments by separating the VLAN and so on.
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Example of a LAN switch connection configuration
Business server A
LAN
Card#2
LAN
Card#1
Business server B
LAN
Card#2
LAN
Card#1
Business server C
LAN
Card#2
LAN
Card#1
LAN
Card#3
LAN switch
[Business LAN]
LAN switch
[Management LAN]
ETERNUS DX/AF
12
1 2 3
10 11 12
LUN1 LUN2
10
2 3
11
LAN
Card#3
LAN
Card#3
1
LUN3 Management
LAN port
LAN switches should not
be inter-connected (*1)
A separate LAN segment is used for each
Server/Storage grouping (*2).
Here, LAN ports 1, 2 and 10 comprise VLAN1,
while LAN ports 3 and 11 comprise VLAN2.
The iSCSI LAN and management LAN
segments are kept separate in the iSCSI
LAN switches, helping maintain the security
of each.
Similarly to FC-SAN,
a dedicated LAN is used for iSCSI,
not the business LAN.
Business LAN
iSCSI LAN
Management LAN
LAN switch #1
[iSCSI LAN]
LAN switch #2
[iSCSI LAN]
*1: In this system configuration, multipaths provide redundant connections between the servers and stor-
age system. LAN switches #1 and #2 provide physical separation of the network paths.
*2: A separate LAN segment is provided in the LAN switch (using the switch VLAN function) for each group-
ing of business servers and storage systems (equivalent to the FC zones).
Chapter 3 Notes
3.1 LAN Environment Notes
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Example of a network address configuration
The following example shows a configuration in which multiple servers are connected to multiple CAs.
ETERNUS DX/AF
LAN switch #1
(VLAN is
recommended)
Server A Server B
CM0 CM1
P0 P1P0 P1
192.168.30.10/24
192.168.10.10/24
192.168.30.1/24
192.168.40.1/24
192.168.40.10/24
192.168.20.10/24
192.168.10.1/24
192.168.20.1/24
LAN switch #2
(VLAN is
recommended)
The following example shows a configuration in which a single server is connected to multiple CAs.
ETERNUS DX/AF
LAN switch #1 LAN switch #2
Server
CM0 CM1
P0 P1P0 P1
192.168.20.10/24
192.168.10.10/24
192.168.20.1/24
192.168.20.11/24
192.168.10.11/24
192.168.10.1/24
Chapter 3 Notes
3.1 LAN Environment Notes
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3.2 Server Startup and Power Supply Control Notes
Before turning the server on, check that the ETERNUS DX/AF storage systems and LAN switches are all
"Ready". If the server is turned on and they are not "Ready", the server will not be able to recognize the
ETERNUS DX/AF storage systems.
Also, when the ETERNUS DX/AF power supply is being controlled by a connected server, make sure that the
ETERNUS DX/AF does not shut down before the connected servers. Similarly, the LAN switches must also be
turned off after the connected servers have been shut down.
If turned off, data writes from the running server cannot be saved to the ETERNUS DX/AF storage systems,
and already saved data may also be affected.
3.3 Jumbo Frame Setting Notes
•To enable Jumbo Frame, all the connected devices must support Jumbo Frame. Set the appropriate values
for various parameters (such as the MTU size) on each connected device.
•For details about how to set Jumbo Frame for a LAN card and LAN switch, refer to the OS and each device's
manuals. Rebooting the server may be required to apply the new settings.
•The MTU size that is supported by the ETERNUS DX/AF is 9,000 bytes.
3.4 Notes on Configuring an iSCSI Boot Environment
•When configuring an iSCSI Boot environment, use the path of the assigned CM (Primary) for the LUN where
the OS is to be installed as the path for the configuration (or OS installation).
•During operation, use the path of the assigned CM (Primary) for the LUN where the OS is installed as the
boot path.
•Use the path of the unassigned CM (Secondary) as the standby path that is only used for maintaining re-
dundancy when a failure occurs.
•After the failure is recovered, perform a boot again using the path of the assigned CM (Primary).
Chapter 3 Notes
3.2 Server Startup and Power Supply Control Notes
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Chapter 4
Checking the Server Information
The server information registered in the ETERNUS DX/AF should be checked.
A variety of commands are used to check the following server information.
•iSCSI Software Initiator
Since iSCSI Software Initiator is provided with the OS, installation is not required.
Check the SUNWiscsiu and SUNWiscsir packages using the "pkginfo" command.
•iSCSI Initiator name
The iSCSI Initiator name is required for the ETERNUS DX/AF settings.
Execute the following command to check the iSCSI Initiator name:
# iscsiadm list initiator-node
Initiator node name: iqn.1986-03.com.sun:01:0003bace9997.48a386c4
Initiator node alias: -
Login Parameters (Default/Configured):
Header Digest: NONE/-
Data Digest: NONE/-
Authentication Type: NONE
RADIUS Server: NONE
Configured Sessions: 1
The iSCSI Initiator name is displayed in the "Initiator node name" column.
•Server-side LAN card IP address for connecting to the ETERNUS DX/AF
Execute the following command:
# ifconfig -a
Set this IP address if it is not already set.
•Initiator CHAP Name
The Initiator CHAP Name is the user name for unidirectional CHAP authentication. Execute the following
command:
This is not required if CHAP authentication is not used.
# iscsiadm list initiator-node
The Initiator CHAP Name is displayed in the "CHAP Name" column of the applicable target information.
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Chapter 5
Installing and Setting Up ETERNUSmgr
If ETERNUSmgr is to be used, install it according to the directions given in the "ETERNUSmgr Install Guide".
After installation is complete, follow the instructions in "ETERNUSmgr User Guide" and set up ETERNUSmgr.
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Chapter 6
Setting Up the ETERNUS DX/AF
Set up the ETERNUS DX/AF storage systems using ETERNUS Web GUI or ETERNUSmgr.
ETERNUS DX/AF setup can be performed independently of server setup. For details on how to perform these
settings, refer to the following manuals.
•"Configuration Guide -Server Connection- Storage System Settings" that corresponds to the ETERNUS DX/AF
to be connected
•"ETERNUS Web GUI User's Guide" or "ETERNUSmgr User Guide"
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Chapter 7
Installing the iSCSI Software Initiator and Setting
Up the Server
7.1 Installing the iSCSI Software Initiator
Since iSCSI Software Initiator is provided with the OS, installation is not required.
7.2 Setting Up the Server
iSCSI connection settings depend on the CHAP authentication method. Perform the settings to match the
CHAP authentication to be used.
CHAP authentication method Required settings
None "7.2.1 Setting Up the Command Queue Depth" (page 16)
"7.2.2 iSCSI Basic Settings" (page 18)
Unidirectional CHAP authentication "7.2.1 Setting Up the Command Queue Depth" (page 16)
"7.2.2 iSCSI Basic Settings" (page 18)
"7.2.3 Server Settings when CHAP Authentication is Used" (page 19)
Bidirectional CHAP authentication "7.2.1 Setting Up the Command Queue Depth" (page 16)
"7.2.2 iSCSI Basic Settings" (page 18)
"7.2.3 Server Settings when CHAP Authentication is Used" (page 19)
"7.2.4 Server Settings when Bidirectional CHAP Authentication is Used" (page 21)
7.2.1 Setting Up the Command Queue Depth
Set the number of commands allowed to be queued (command queue depth) on each LUN in the ETERNUS
DX/AF storage systems from the LAN card. This setting optimizes the connection between the ETERNUS DX/AF
storage systems and the server.
1Edit the configuration file.
Edit the configuration file (/etc/system) and specify the command queue depth.
Model Setting value
Command queue depth
ETERNUS DX/AF Arbitrary (*1)
(Up to 1024 for each iSCSI port of the ETERNUS DX/AF)
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*1: Recommended value = 1024 ¸ (number of iSCSI ports that are connected to a single CA port) ¸
number of LUNs
(Round the result down)
•Use the value of "8" if the actual result is lower.
•To achieve maximum system performance, these values can be changed according to the server
load and the peak operating times.
•The number of simultaneous command executions per CA port for the ETERNUS DX/AF is limited
to 1024. These values are used by multiple servers that share the CA port. A maximum of 1024
commands can be executed per CA port.
The parameter to be specified is determined by the CPU which is installed in the server to be connected.
•For SPARC
Specify the command queue depth for the "ssd_max_throttle" parameter.
Add this parameter if it does not exist.
Example:
set ssd:ssd_max_throttle = 20
•For x86
Specify the command queue depth for the "sd_max_throttle" parameter.
Add this parameter if it does not exist.
Example:
set sd:sd_max_throttle = 20
2After editing the configuration file, save it.
3After the setting is complete, check the configuration file for incorrect settings.
4Reboot the server.
# /usr/sbin/shutdown -y -g0 -i6
Chapter 7 Installing the iSCSI Software Initiator and Setting Up the Server
7.2 Setting Up the Server
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7.2.2 iSCSI Basic Settings
The following items are required for the iSCSI connection and must be set:
•Checking the iSCSI Initiator
•Checking the iSCSI Initiator Node Name
•Setting the iSCSI Target IP addresses
•Enabling the iSCSI Target connection
•Creating an iSCSI device link
•Checking the ETERNUS DX/AF
1Check that the iSCSI Initiator service (iscsid) is enabled.
# svcs -a | grep iscsi
disabled 14:30:33 svc:/network/iscsi/initiator:default
If the iSCSI Initiator service is "disabled" (the default setting), use the "svcadm" command to change it
to the "online" state.
# svcadm enable iscsi/initiator
# svcs -a | grep iscsi
disabled 14:30:33 svc:/system/iscsitgt:default
online 14:30:33 svc:/network/iscsi/initiator:default
2Check the iSCSI Initiator Node Name.
Refer to "iSCSI Initiator name" in "Chapter 4 Checking the Server Information" (page 13).
3Set the iSCSI Target IP address(es).
To connect the iSCSI Target, specify the IP address of each iSCSI CA port of the ETERNUS DX/AF that is to
be an iSCSI Target, as a "discovery-address".
# iscsiadm add discovery-address
Enter the IP address for the underlined portion.
Example: CM0Port0: 192.1.1.120, CM1Port0: 192.1.1.121
# iscsiadm add discovery-address 192.1.1.120
# iscsiadm add discovery-address 192.1.1.121
4Enable the connection to the iSCSI Target.
Enable the connection to the ETERNUS DX/AF that is to be the iSCSI Target.
# iscsiadm modify discovery -t enable
Chapter 7 Installing the iSCSI Software Initiator and Setting Up the Server
7.2 Setting Up the Server
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5Create an iSCSI device link.
# devfsadm -i iscsi
6Check the ETERNUS DX/AF.
Check the state of the ETERNUS DX/AF disks using the "format" command.
Example: ETERNUS DX80
# format
Searching for disks...done
AVAILABLE DISK SELECTIONS:
1. c6t25d0 <FUJITSU-ETERNUS_DXL-0000 cyl 510 alt 2 hd 64 sec 256>
/iscsi/[email protected]%3Astorage-system.dxl%3A00001001-cm00002,0
2. c6t26d0 <FUJITSU-ETERNUS_DXL-0000 cyl 510 alt 2 hd 64 sec 256>
/iscsi/[email protected]%3Astorage-system.dxl%3A00001001-cm00002,1
3. c6t27d0 <FUJITSU-ETERNUS_DXL-0000 cyl 510 alt 2 hd 64 sec 256>
/iscsi/[email protected]%3Astorage-system.dxl%3A00001001-cm10004,0
4. c6t28d0 <FUJITSU-ETERNUS_DXL-0000 cyl 510 alt 2 hd 64 sec 256>
/iscsi/[email protected]%3Astorage-system.dxl%3A00001001-cm10004,1
Specify disk (enter its number): Specify disk (enter its number):
7.2.3 Server Settings when CHAP Authentication is Used
The following operations are required for CHAP authentication.
•Setting the Initiator secret (password setting to connect to the ETERNUS DX/AF)
•Setting the Initiator CHAP Name (CHAP name setting to connect to the ETERNUS DX/AF)
•Enabling CHAP
1Set the Initiator secret.
This is a password that must be set so that the Initiator can connect to the target ETERNUS DX/AF. The
CHAP secret set here must match that set in Target information.
Example:
To set the password "initiator000"
# iscsiadm modify initiator-node --CHAP-secret
Enter secret:initiator000
Re-enter secret:initiator000
Chapter 7 Installing the iSCSI Software Initiator and Setting Up the Server
7.2 Setting Up the Server
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Passwords are restricted to a maximum of 16 characters by the Solaris operating system. For 17 or
more characters, the following message is output:
Iscsiadm: secret too long, maximum length is 16
Iscsiadm: Unable to complete operation
2Set the Initiator CHAP Name.
The Initiator Node Name is the default Initiator CHAP Name. Use the "iscsiadm" command to set a new
Initiator CHAP Name.
The Initiator CHAP Name set here must match that set in Target information.
# iscsiadm modify initiator-node --CHAP-name
Enter the CHAP name for the underlined portion.
Example:
To set "initiator" as the CHAP Name
# iscsiadm modify initiator-node --CHAP-name initiator
3Enable CHAP authentication.
Enable CHAP authentication on the Initiator.
# iscsiadm modify initiator-node --authentication CHAP
4Check that CHAP is enabled on the Initiator. Use the "initiator-node" option.
# iscsiadm list initiator-node
Initiator node name: iqn.1986-03.com.sun:01:00144f565a49.47677520
Initiator node alias: -
Login Parameters (Default/Configured):
Header Digest: NONE/-
Data Digest: NONE/-
Authentication Type: CHAP
CHAP Name: initiator
RADIUS Server: NONE
RADIUS access: unknown
Configured Sessions: 1
Chapter 7 Installing the iSCSI Software Initiator and Setting Up the Server
7.2 Setting Up the Server
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