IBM System storage DS6000 Series Technical manual

IBM TotalStorage DS6000
Introduction and Planning Guide
GC26-7679-04


IBM TotalStorage DS6000
Introduction and Planning Guide
GC26-7679-04


Note:
Before using this information and the product it supports, read the information in the Safety and environmental notices and
Notices sections.
Fifth Edition (May 2005)
©Copyright International Business Machines Corporation 2004, 2005. All rights reserved.
US Government Users Restricted Rights –Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.

Contents
Tables ............................ vii
About this guide ........................ix
Who should use this guide .....................ix
Summary of Changes for GC26-7679-04 IBM TotalStorage DS6000
Introduction and Planning Guide .................xi
Chapter 1. Introduction ......................1
Overview of the DS6000 series models ................1
DS6800 (Model 1750-511) ....................2
DS6000 expansion enclosure (Model 1750-EX1) ............3
Performance features .......................4
Data availability features ......................5
RAID implementation ......................5
Copy Services ........................6
FlashCopy ..........................8
Remote Mirror and Copy ....................10
z/OS Copy Services ......................16
Subsystem Device Driver for open-systems .............17
Balancing the I/O load ......................17
Storage consolidation ......................17
Count key data .........................18
Fixed block (FB) ........................18
Logical volumes ........................18
Parallel access volumes .....................19
Base and alias exposures ....................19
Multiple allegiance for FICON hosts ................19
Host systems that DS6000 series supports ..............19
Fibre channel host attachments ..................20
Attaching aDS6000 series to an open-systems host with fibre channel
adapters .........................20
FICON-attached zSeries hosts ..................21
DS6000 Interfaces .......................22
IBM TotalStorage DS Storage Manager ...............22
DS Open application programming interface .............22
DS command-line interface ...................23
Software Requirements ......................23
Notification methods .......................23
Remote support ........................24
Licensed function ........................25
Chapter 2. Planning use of licensed functions ............27
Feature codes for operating environment licensing ............27
Copy Services functions .....................28
Feature codes for point-in-time copy ................28
Feature codes for remote mirror and copy ..............29
Feature codes for parallel access volume ...............29
FICON Attachment license ...................30
Chapter 3. Planning the physical configuration ............31
Storage Management Console ...................31
Storage Management Console requirements .............31
©Copyright IBM Corp. 2004, 2005 iii

Storage Management Console configuration .............32
Disk drive module (DDM) storage features...............33
Capacity calculation guidelines ..................33
Fiber optic host cables ......................35
Fibre channel host interposers ...................36
Expansion enclosure cables ....................36
Fibre channel host attachment ports .................36
System rack feature codes ....................37
Power line cords ........................38
Power connector requirements ..................39
Feature codes for amodem ...................40
Chapter 4. Planning for installation ................43
Preparing the physical environment for your DS6000 series ........43
Service-clearance and floor-load requirements ............44
Planning for environment requirements ................44
Input voltage requirements ...................45
Preparing the rack .......................45
Rack mounting template ....................46
Considering safety issues .....................47
Providing afire-suppression system ................47
Considering earthquake preparedness alternatives...........48
Delivery requirements ......................48
Receiving the DS6000 series shipment ...............48
Shipment weights and dimensions .................48
Planning for network and communications requirements..........50
Host attachment communication requirements ............50
Remote support connection requirements ..............51
SAN requirements and considerations ...............51
Chapter 5. Planning your DS6000 series ..............53
Configuration work sheet .....................53
Completing the network settings work sheet ..............53
Host attachment work sheet ....................54
Configuring your DS6000 series ..................55
Offline configuration overview ..................55
Online configuration overview ..................55
Express configuration overview ..................56
Chapter 6. Activating licenses ..................57
Obtaining activation codes.....................57
Activation codes work sheet ...................58
Applying activation codes ....................58
Importing activation codes ....................59
Order Confirmation Code ....................59
Applying feature activation keys to anew storage unit ..........60
Accessibility .........................61
Notices ...........................63
Terms and conditions for downloading and printing publications .......64
Trademarks ..........................65
Electronic emission notices ....................66
Federal Communications Commission (FCC) statement .........66
Industry Canada compliance statement ...............66
European community compliance statement .............66
iv Introduction and Planning Guide

Japanese Voluntary Control Council for Interference (VCCI) class Astatement 67
Korean Ministry of Information and Communication (MIC) statement ....67
Taiwan class Acompliance statement ...............68
Glossary ...........................69
..............................69
Index ............................97
Contents v

vi Introduction and Planning Guide

Tables
1. Operating environment licensing feature codes for DS6800 ...............28
2. Point-in-time copy (PTC) feature codes for DS6800 ..................28
3. Remote mirror and copy (RMC) feature codes for DS6800 ...............29
4. Parallel access volume (PAV) feature codes for DS6800 ................29
5. Server attachment license (FICON) for DS6800 ...................30
6. Fibre-channel disk drive sets for DS6000 series ...................33
7. Disk drive set capacity (RAID 10 arrays) ......................34
8. Disk drive set capacity (RAID 5arrays) ......................34
9. Shortwave fiber optic host cables feature codes for DS6800 ...............35
10. Longwave fiber optic host cables feature codes for DS6800 ...............36
11. Fibre channel host interposers feature codes for DS6800 ................36
12. DS6000 expansion enclosure cable feature codes ..................36
13. Host connectivity ports -shortwave for DS6800 ...................37
14. Host connectivity ports -longwave for DS6800 ....................37
15. System rack feature codes for DS6000 series ....................37
16. Power cord feature codes ...........................38
17. DS6000 series power connectors .........................40
18. Dimensions and weight for Model 1750-511 or Model 1750-EX1 expansion enclosure .....43
19. Operating environment.............................44
20. Acoustic declaration for the DS6000 series .....................45
21. DS6000 series input voltage requirements .....................45
22. Packaged dimensions and weight for DS6000 series without arack (all countries) .......49
23. Packaged dimensions and weight for the DS6000 series including the 2101-200 rack (all
countries) .................................49
24. Host attachment work sheet...........................55
25. Activation codes work sheet...........................58
©Copyright IBM Corp. 2004, 2005 vii

viii Introduction and Planning Guide

About this guide
This publication introduces the IBM
® TotalStorage ® DS6000 and discusses what
you need to consider when planning for the DS6000 series. Topics covered include
licensed functions, physical configuration, site requirements, and ordering features.
Who should use this guide
This publication is for anyone who is planning to install and configure an IBM
TotalStorage DS6000 series.
©Copyright IBM Corp. 2004, 2005 ix

xIntroduction and Planning Guide

Summary of Changes for GC26-7679-04 IBM TotalStorage
DS6000 Introduction and Planning Guide
This document contains terminology, maintenance, and editorial changes. Technical
changes or additions to the text and illustrations are indicated by avertical line to
the left of the change. This summary of changes describes new functions that have
been added to this release.
New Information
Feature codes added for remote access using adial-up connection in “Feature
codes for amodem” on page 40
Changed Information
Added power cord feature code for Taiwan to “Power line cords” on page 38
Corrected service clearance minimum requirements in “Preparing the physical
environment for your DS6000 series” on page 43
©Copyright IBM Corp. 2004, 2005 xi

xii Introduction and Planning Guide

Chapter 1. Introduction
The IBM
® TotalStorage ® DS6000 series is amember of the family of DS products
and is built upon 2Gbps fibre channel technology that provides RAID-protected
storage with advanced functionality, scalability, and increased addressing
capabilities.
The DS6000 series offers ahigh reliability and performance midrange storage
solution through the use of hot-swappable redundant RAID controllers in aspace
efficient modular design. The DS6000 series provides storage sharing and
consolidation for awide variety of operating systems and mixed server
environments.
The DS6000 series offers high scalability while maintaining excellent performance.
With the DS6800 (Model 1750-511), you can install up to 16 disk drive modules
(DDMs). The minimum storage capability with 8DDMs is 584 GB. The maximum
storage capability with 16 DDMs for the DS6800 model is 4.8 TB.
If you want to connect more than 16 disks, you use the optional DS6000 expansion
enclosures (Model 1750-EX1) that allow amaximum of 224 DDMs per storage
system and provide amaximum storage capability of 67 TB.
The DS6800 measures 5.25-in. high and is available in a19-in. rack mountable
package with an optional modular expansion enclosure of the same size to add
capacity to help meet your growing business needs.
The DS6000 series addresses business efficiency needs through its heterogeneous
connectivity, high performance and manageability functions, thereby helping to
reduce total cost of ownership.
The DS6000 series offers the following major features:
vPowerPC 750GX processors
vDual active controllers provide continuous operations through the use of two
processors that form apair to back up the other
vAselection of 2GB fibre channel (FC) disk drives, including 73 GB, 146 GB, and
300 GB sizes with speeds of 10 000 or 15 000 revolutions per minute (RPM)
v2GB fibre channel and FICON host attachments of up to 8ports, which can be
configured with an intermix of Fibre Channel Protocol (FCP) and FICON
vFibre channel arbitrated loop (FC AL) switched device attachment of up to 2dual
loops
vStorage virtualization
vBattery backed mirrored cache
vFully redundant power and cooling system
vDisaster Recovery and Copy Service solutions
Overview of the DS6000 series models
The DS6000 series offers abase enclosure model with storage and optional
expansion enclosures.
©Copyright IBM Corp. 2004, 2005 1

DS6800 (Model 1750-511)
The DS6800 offers the following features:
vTwo FC controller cards
vPowerPC 750GX 1GHz processor
v4GB of cache
vTwo battery backup units (one per each controller card)
vTwo ac/dc power supplies with imbedded enclosure cooling units
vEight 2Gb/sec. device ports
vConnectivity with the availability of two to eight fibre channel/FICON host ports.
The host ports auto-negotiate to either 2Gbps or 1Gbps link speeds.
vAttachment to 13 DS6000 expansion enclosures.
f2d00067
f2d00068
The DS6800 is aself-contained 3U enclosure that can be mounted in astandard
19-inch rack. The DS6800 comes with authorization for up to 16 internal FC DDMs,
offering up to 4.8 TB of storage capability. The DS6800 allows up to 13 DS6000
expansion enclosures to be attached. Astorage system supports up to 224 disk
drives for atotal of up to 67.2 TB of storage.
The DS6800 system offers connectivity with the availability of two to eight Fibre
Channel/FICON host ports. The 2GB fibre channel/FICON host ports, which are
offered in long-wave and shortwave, auto-negotiate to either 2Gbps or 1Gbps link
speeds. This flexibility supports the ability to exploit the potential benefits offered by
higher performance, 2Gbps SAN-based solutions, while also maintaining
compatibility with existing 1Gbps infrastructures. In addition, with the maximum of
eight host ports enabled, the DS6800 system can be configured with an intermix of
2Introduction and Planning Guide

Fibre Channel Protocol (FCP) and FICON. This can help protect your investment in
fibre channel adapters, and increase your ability to migrate to new servers.
The DS6800 system offers connectivity support across abroad range of server
environments, including IBM eServer
™
,zSeries
®
,iSeries
™
,and pSeries
® servers as
well as servers from Sun Microsystems, Hewlett-Packard, and other Intel-based
providers. This rich support of heterogeneous environments and attachments, along
with the flexibility to easily partition the DS6800 system storage capacity among the
attached environments, helps support storage consolidation requirements and
dynamic, changing environments.
DS6000 expansion enclosure (Model 1750-EX1)
The DS6000 series expansion enclosure contains the following features:
vTwo expansion controller cards. Each controller card provides the following:
–2inbound ports (2 Gb/sec.)
–2outbound ports (2 Gb/sec.)
–1FC switch per controller card
v
Controller disk enclosure that holds up to 16 FC DDMs
vTwo ac/dc power supplies with imbedded enclosure cooling units
vSupports attachment to DS6800
f2d00067
f2d00069
The 3U DS6000 expansion enclosure can be mounted in astandard 19-inch rack.
The front of the enclosure contains the docking sites where you can install up to 16
DDMs.
Chapter 1. Introduction 3

The DDMs are installed in ahorizontal position with alocking handle. The rear of
the enclosure provides the docking sites for the power supplies and the controller
cards.
You can attach the DS6800 and expansion enclosure by using the controller card
interfaces at the rear of the enclosure. Asystem display panel is also located at the
rear of the enclosure.
Performance features
The DS6000 series is built upon 2Gbps fibre channel technology that can help
bring high availability RAID-protected storage with scalable capacity, increased
addressing capabilities, and connectivity to awide range of storage area network
(SAN) applications.
The DS6000 series provides the following technology and hardware to meet today’s
on demand business environments:
Integrated RAID controller technology
The DS6000 series features IBM’s 32-bit PowerPC microprocessor, afourth
generation processing technology.
High availability
The DS6000 series is designed with component redundancy to eliminate
single points of hardware failure, and no single point of repair other than the
enclosure.
Industry standard fibre channel disk drives
The DS6000 series offers aselection of 2Gb fibre channel disk drives,
including 300 GB drives, allowing the DS6000 series to scale up to 67 TB
of capacity.
LUN and volume management
LUN and volume creation and deletion is nondisruptive. When you delete a
LUN or volume, the capacity can immediately be reused. You can configure
LUN and volumes to span arrays, which allows larger LUNs and volumes.
Addressing capabilities
The DS6000 series allows:
vUp to 32 logical subsystems
vUp to 8192 logical volumes
vUp to 1040 volume groups
Simplified storage management for zSeries with z/OS
The DS6000 series supports anew 65 520 cylinder 3390 volume. This
volume option has acapacity of approximately 55.7 GB. It helps relieve
addressing constraints, improve disk resource utilization, and improve
storage administrator productivity by providing the ability to consolidate
multiple disk volumes into asingle address.
System management
The DS6000 series provides online and offline configuration capability
features and agraphical user interface (GUI) designed to offer increased
ease of use.
Asingle command line interface (CLI) supports both logical configuration
and copy services.
Online Information Center
The online Information Center is an information database that provides you
4Introduction and Planning Guide

the opportunity to quickly familiarize yourself with the major aspects of the
DS6000 series and to easily recognize the topics for which you might
require more information. It provides information regarding user assistance
for tasks, concepts, reference, user scenarios, tutorials, and other types of
user information. Using the wonderful search tool and because the
information is all in one place rather than across multiple publications, you
can access the information that you need more efficiently and effectively.
Data availability features
This section provides information about data availability features that are supported
by DS6000 series.
The DS6000 series provides the following features:
vRAID implementation
vCopy services
vAvailability support for open systems, iSeries, zSeries, and pSeries hosts
vComponent redundancy to eliminate single points of hardware failure, and no
single point of repair other than the enclosure.
RAID implementation
RAID implementation improves data storage reliability and performance.
With RAID implementation, the DS6000 series offers fault-tolerant data storage by
storing the same data in different places on multiple disk drive modules (DDMs). By
placing data on multiple disks, input/output operations can overlap in abalanced
way to improve the basic reliability and performance of the attached storage
devices.
Physical capacity for the DS6000 series can be configured as RAID 5, RAID 10, or
acombination of both. RAID 5can offer excellent performance for most
applications, while RAID 10 can offer better performance for selected applications,
in particular, high random write content applications in the open systems
environment. Each array in the DS6000 series is composed of four drives.
RAID 5overview
RAID 5is amethod of spreading volume data across multiple disk drives. The
DS6000 series supports RAID 5arrays.
RAID 5provides faster performance by striping data across adefined set of DDMs.
Data protection is provided by parity, which redundantly saves the data to the same
DDMs.
RAID 10 overview
RAID 10 provides high availability by combining features of RAID 0and RAID 1.
The DS6000 series supports RAID 10 arrays.
RAID 0optimizes performance by striping volume data across multiple disk drives
at atime. RAID 1provides disk mirroring which duplicates data between two disk
drives. By combining the features of RAID 0and RAID 1, RAID 10 provides a
second optimization for fault tolerance. Data is striped across half of the disk drives
in the RAID 1array, and the other half of the array mirrors the first set of disk
drives. Access to data is preserved if one disk in each mirrored pair remains
available.
Chapter 1. Introduction 5

RAID-10 offers faster data reads and writes than RAID 5because it does not need
to manage parity. However, with half of the DDMs in the group used for data and
the other half to mirror that data, RAID 10 disk groups have less capacity than
RAID 5disk groups.
Copy Services
This topic provides overviews of the different functions of Copy Services, including
the benefits of using Copy Services for disaster recovery.
Overview of Copy Services
Copy Services is acollection of functions that provide disaster recovery, data
migration, and data duplication functions. Copy Services runs on the DS6000 series
and supports open systems and zSeries
® environments.
Many design characteristics of the DS6000 series and data copying and mirroring
capabilities of Copy Services features contribute to the protection of your data, 24
hours aday and seven days aweek. Abrief description of each of these licensed
features is provided below.
You can manage Copy Services functions through acommand-line interface called
IBM TotalStorage DS CLI and aWeb-based interface called IBM TotalStorage DS
Storage Manager. The DS Storage Manager allows you to set up and manage the
following types of data-copy features from any point from which network access is
available:
Point-in-time copy
The point-in-time copy feature, which includes FlashCopy
®
,enables you to
create full volume copies of data using source and target volumes that span
logical subsystems within asingle storage unit. After the FlashCopy function
completes, you can immediately access both the source and target copies.
Remote Mirror and Copy
The remote mirror and copy feature copies data between volumes on two
or more storage units. When your host system performs I/O operations, the
source volume is copied or mirrored to the target volume automatically.
After you create aremote mirror and copy relationship between asource
volume and atarget volume, the target volume continues to be updated
with changes from the source volume until you remove the relationship
between the volumes.
The following functions of remote mirror and copy are available:
vMetro Mirror
vGlobal Copy
vGlobal Mirror
Consider the following Copy Services information:
vThe feature activation codes for Copy Services features (remote mirror and copy
and point-in-time copy) must be obtained and enabled on the DS Storage
Manager before you can begin using the features.
IBM TotalStorage Resiliency Family
IBM TotalStorage Resiliency Family is aset of products and features that are
designed to help you implement storage solutions that keep your business running
24 hours aday, 7days aweek.
6Introduction and Planning Guide