IBM DS8882F Technical manual

IBM DS8882F Rack Mounted storage system
Version 8 Release 5
Introduction and Planning Guide
GC27-9259-00
IBM

Note
Before using this information and the product it supports, read the information in “Safety and environmental notices” on
page 133 and “Notices” on page 131.
This edition applies to version 8, release 5 of the DS8882F Rack Mounted storage system.
© Copyright IBM Corporation 2018.
US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.

Contents
About this book ........... v
Who should use this book .......... v
Conventions and terminology ........ v
Publications and related information ...... v
IBM Publications Center .......... ix
Sending comments ............ x
Chapter 1. Overview ......... 1
Machine types overview .......... 2
Hardware ............... 3
DS8882F (machine type 533x model 983) .... 4
High Performance Flash Enclosures Gen2 pair .. 6
Management enclosure .......... 7
Processor nodes ............ 7
I/O enclosure ............. 7
Power ............... 8
Functional overview ............ 8
Logical configuration ........... 11
Logical configuration with DS8000 Storage
Management GUI ........... 11
Logical configuration with DS CLI...... 13
RAID implementation .......... 15
Logical subsystems ........... 17
Allocation methods........... 17
Management interfaces .......... 19
DS8000 Storage Management GUI ...... 19
DS command-line interface ........ 19
DS Open Application Programming Interface .. 20
RESTful API ............. 20
IBM Spectrum Control.......... 21
IBM Copy Services Manager........ 21
DS8000 Storage Management GUI supported web
browsers ............... 22
Chapter 2. Hardware features ..... 25
Storage complexes ............ 27
Management console ........... 27
Hardware specifics ............ 27
Storage system structure ......... 28
Flash drives ............. 28
Drive maintenance policy......... 28
Host attachment overview ........ 29
I/O load balancing ............ 30
Storage consolidation ........... 30
Count key data ............. 31
Fixed block .............. 31
T10 DIF support............ 31
Logical volumes ............. 32
Allocation, deletion, and modification of volumes 32
LUN calculation ............. 33
Extended address volumes for CKD ...... 34
Quick initialization ............ 35
Chapter 3. Data management features 37
Transparent cloud tiering .......... 37
Dynamic volume expansion ......... 39
Count key data and fixed block volume deletion
prevention............... 39
Thin provisioning ............ 39
Extent Space Efficient (ESE) capacity controls for
thin provisioning ........... 40
IBM Easy Tier ............. 41
VMware vStorage API for Array Integration support 42
Performance for IBM Z .......... 43
Copy Services ............. 45
Disaster recovery through Copy Services ... 54
Resource groups for Copy Services scope limiting 55
Comparison of Copy Services features ..... 57
I/O Priority Manager ........... 58
Securing data.............. 59
Chapter 4. Planning the physical
configuration ............ 61
Configuration controls........... 61
Determining physical configuration features ... 61
Management console features ........ 62
Primary and secondary management consoles .. 62
Storage features ............. 63
Feature codes for drive sets ........ 63
Storage-enclosure fillers ......... 63
Configuration rules for storage features .... 64
Physical and effective capacity ....... 64
I/O adapter features ........... 66
I/O enclosure ............ 66
Feature codes for Flash RAID adapter pairs .. 67
Fibre Channel (SCSI-FCP and FICON) host
adapters and cables........... 67
Configuration rules for host adapters..... 68
Processor complex features ......... 69
Feature codes for Transparent cloud tiering
adapters .............. 69
Feature codes for processor licenses ..... 69
Processor memory features ......... 70
Feature codes for system memory ...... 70
Power features ............. 70
Power cords ............. 70
Input voltage ............. 74
Configuration rules for power features .... 74
Other configuration features ......... 74
BSMI certificate (Taiwan) ......... 75
Non-encryption certification key (China and
Russia) ............... 75
Chapter 5. Planning use of licensed
functions.............. 77
Licensed function indicators ......... 77
License scope.............. 77
Ordering licensed functions ......... 78
Rules for ordering licensed functions ...... 79
Base Function license ........... 80
© Copyright IBM Corp. 2018 iii

Database Protection........... 81
Encryption Authorization......... 81
IBM Easy Tier ............ 81
I/O Priority Manager .......... 82
Operating environment license ....... 82
Thin provisioning ........... 82
z-synergy Services license ......... 82
High Performance FICON for z Systems.... 83
IBM HyperPAV ............ 83
Parallel Access Volumes ......... 83
Transparent cloud tiering ......... 83
z/OS Distributed Data Backup ....... 84
Copy Services license ........... 84
Remote mirror and copy functions...... 85
FlashCopy function (point-in-time copy).... 85
Safeguarded Copy ........... 85
z/OS Global Mirror .......... 86
z/OS Metro/Global Mirror Incremental Resync 86
Copy Services Manager on the Hardware
Management Console license ........ 86
Chapter 6. Delivery and installation
requirements ............ 89
Acclimation .............. 89
Shipment weights and dimensions....... 90
Receiving delivery ............ 90
Installation site requirements ........ 90
Planning the rack configuration ...... 90
Planning for floor and space requirements ... 92
Planning for power requirements ...... 93
Planning for environmental requirements ... 95
Planning for safety ........... 99
Planning for network and communications
requirements ............ 100
Chapter 7. Planning your storage
complex setup ........... 103
Company information .......... 103
Management console network settings ..... 103
Remote support settings.......... 104
Notification settings ........... 105
Power control settings .......... 105
Control switch settings .......... 105
Chapter 8. Planning data migration 107
Selecting a data migration method ...... 108
Chapter 9. Planning for security ... 111
Planning for data encryption ........ 111
Planning for encryption-key servers ..... 111
Planning for key lifecycle managers ..... 112
Planning for full-disk encryption activation .. 113
Planning for user accounts and passwords.... 113
Managing secure user accounts ...... 113
Managing secure service accounts ..... 114
Planning for NIST SP 800-131A security
conformance.............. 114
Chapter 10. License activation and
management............ 117
Planning your licensed functions ....... 117
Activation of licensed functions ....... 118
Activating licensed functions ....... 118
Scenarios for managing licensing ....... 119
Adding storage to your machine ...... 119
Managing a licensed feature ....... 120
Appendix A. Accessibility features 121
Appendix B. Warranty information 123
Appendix C. IBM equipment and
documents ............ 125
Installation components .......... 125
Customer components .......... 126
Service components ........... 126
Appendix D. Customization
worksheets ............ 127
Appendix E. Compliance standards 129
Notices .............. 131
Trademarks .............. 132
Homologation statement ......... 133
Safety and environmental notices....... 133
Safety notices and labels......... 133
Vendor-specific uninterruptible power supply
safety statements ........... 142
Environmental notices ......... 143
Electromagnetic compatibility notices .... 144
Index ............... 149
iv DS8882F Introduction and Planning Guide

About this book
This book describes how to plan for a new installation of the DS8882F Rack
Mounted storage system. It includes information about planning considerations,
customization guidance, and configuration.
Who should use this book
This book is intended for personnel that are involved in planning. Such personnel
include IT facilities managers, individuals responsible for power, cooling, wiring,
network, and general site environmental planning and setup.
Conventions and terminology
Different typefaces are used in this guide to show emphasis, and various notices
are used to highlight key information.
The following typefaces are used to show emphasis:
Typeface Description
Bold Text in bold represents menu items.
bold monospace Text in bold monospace represents command names.
Italics Text in italics is used to emphasize a word. In command syntax, it
is used for variables for which you supply actual values, such as a
default directory or the name of a system.
Monospace Text in monospace identifies the data or commands that you type,
samples of command output, examples of program code or
messages from the system, or names of command flags,
parameters, arguments, and name-value pairs.
These notices are used to highlight key information:
Notice Description
Note These notices provide important tips, guidance, or advice.
Important These notices provide information or advice that might help you
avoid inconvenient or difficult situations.
Attention These notices indicate possible damage to programs, devices, or
data. An attention notice is placed before the instruction or
situation in which damage can occur.
Publications and related information
Product guides, other IBM®publications, and websites contain information that
relates to the IBM DS8000®series.
To view a PDF file, you need Adobe Reader. You can download it at no charge
from the Adobe website(get.adobe.com/reader/).
© Copyright IBM Corp. 2018 v

Online documentation
The IBM DS8000 series online product documentation ( http://www.ibm.com/
support/knowledgecenter/ST5GLJ_8.1.0/com.ibm.storage.ssic.help.doc/
f2c_securitybp.html) contains all of the information that is required to install,
configure, and manage DS8000 storage systems. The online documentation is
updated between product releases to provide the most current documentation.
Publications
You can order or download individual publications (including previous versions)
that have an order number from the IBM Publications Center website
(www.ibm.com/shop/publications/order/). Publications without an order number
are available on the documentation CD or can be downloaded here.
Table 1. DS8000 series product publications
Title Description Order number
DS8882F Introduction and
Planning Guide
This publication provides an overview of
the DS8882F, the latest storage system in
the DS8000 series. The DS8882F provides
the new model 983. This publication
provides an overview of the product and
technical concepts for DS8882F.
V8.5.0 GC27-9259-00
DS8880 Introduction and
Planning Guide
This publication provides an overview of
the product and technical concepts for
DS8880. It also describes the ordering
features and how to plan for an
installation and initial configuration of
the storage system.
V8.5.0 GC27-8525-16
V8.4.0 GC27-8525-15
V8.3.3 GC27-8525-14
V8.3.1 GC27-8525-13
V8.3.0 GC27-8525-12
V8.2.3 GC27-8525-11
V8.2.1 GC27-8525-09
V8.2.0 GC27-8525-07
V8.1.1 GC27-8525-06
V8.1.0 GC27-8525-05
V8.0.1 GC27-8525-04
GC27-8525-03
V8.0.0 GC27-8525-02
DS8870 Introduction and
Planning Guide
This publication provides an overview of
the product and technical concepts for
DS8870. It also describes the ordering
features and how to plan for an
installation and initial configuration of
the storage system.
V7.5.0 GC27-4209-11
V7.4.0 GC27-4209-10
V7.3.0 GC27-4209-09
V7.2.0 GC27-4209-08
V7.1.0 GC27-4209-05
V7.0.0 GC27-4209-02
DS8800 and DS8700
Introduction and Planning
Guide
This publication provides an overview of
the product and technical concepts for
DS8800 and DS8700. It also describes
ordering features and how to plan for an
installation and initial configuration of
the storage system.
V6.3.0 GC27-2297-09
V6.2.0 GC27-2297-07
vi DS8882F Introduction and Planning Guide

Table 1. DS8000 series product publications (continued)
Title Description Order number
Command-Line Interface
User's Guide
This publication describes how to use the
DS8000 command-line interface (DS CLI)
to manage DS8000 configuration and
Copy Services relationships, and write
customized scripts for a host system. It
also includes a complete list of CLI
commands with descriptions and
example usage.
V8.5.0 SC27-8526-09
V8.3.3 SC27-8526-08
V8.3.1 SC27-8526-07
V8.3.0 SC27-8526-06
V8.2.3 SC27-8526-05
V8.2.2 SC27-8526-04
V8.2.0 SC27-8526-03
V8.1.1 SC27-8526-02
V8.1.0 SC27-8526-01
V8.0.0 SC27-8526-00
V7.5.0 GC27-4212-06
V7.4.0 GC27-4212-04
V7.3.0 GC27-4212-03
V7.2.0 GC27-4212-02
V7.1.0 GC27-4212-01
V7.0.0 GC27-4212-00
V6.3.0 GC53-1127-07
Host Systems Attachment
Guide
This publication provides information
about attaching hosts to the storage
system. You can use various host
attachments to consolidate storage
capacity and workloads for open systems
and IBM Z hosts.
V8.0.0 SC27-8527-00
V7.5.0 GC27-4210-04
V7.4.0 GC27-4210-03
V7.2.0 GC27-4210-02
V7.1.0 GC27-4210-01
V7.0.0 GC27-4210-00
V6.3.0 GC27-2298-02
IBM Storage System
Multipath Subsystem Device
Driver User's Guide
This publication provides information
regarding the installation and use of the
Subsystem Device Driver (SDD),
Subsystem Device Driver Path Control
Module (SDDPCM), and Subsystem
Device Driver Device Specific Module
(SDDDSM) on open systems hosts.
Download
Application Programming
Interface Reference
This publication provides reference
information for the DS8000 Open
application programming interface (DS
Open API) and instructions for installing
the Common Information Model Agent,
which implements the API.
V7.3.0 GC27-4211-03
V7.2.0 GC27-4211-02
V7.1.0 GC27-4211-01
V7.0.0 GC35-0516-10
V6.3.0 GC35-0516-10
RESTful API Guide This publication provides an overview of
the Representational State Transfer
(RESTful) API, which provides a
platform independent means by which to
initiate create, read, update, and delete
operations in the DS8000 and supporting
storage devices.
V1.3 SC27-9235-00
V1.2 SC27-8502-02
V1.1 SC27-8502-01
V1.0 SC27-8502-00
Table 2. DS8000 series warranty, notices, and licensing publications
Title Location
Warranty Information
for DS8000 series
http://www.ibm.com/support/docview.wss?uid=ssg1S7005239
IBM Safety Notices Search for G229-9054 on the IBM Publications Center website
IBM Systems
Environmental Notices
http://ibm.co/1fBgWFI
About this book vii

Table 2. DS8000 series warranty, notices, and licensing publications (continued)
Title Location
International Agreement
for Acquisition of
Software Maintenance
(Not all software will
offer Software
Maintenance under this
agreement.)
http://ibm.co/1fBmKPz
License Agreement for
Machine Code
http://ibm.co/1mNiW1U
Other Internal Licensed
Code
http://ibm.co/1kvABXE
International Program
License Agreement and
International License
Agreement for
Non-Warranted
Programs
http://www-03.ibm.com/software/sla/sladb.nsf/pdf/ipla/$file/
ipla_en.pdf
http://www-304.ibm.com/jct03001c/software/sla/sladb.nsf/pdf/
ilan/$file/ilan_en.pdf
See the Agreements and License Information CD that was included with the
DS8000 series for the following documents:
vLicense Information
vNotices and Information
vSupplemental Notices and Information
Related websites
View the websites in the following table to get more information about DS8000
series.
Table 3. DS8000 series related websites
Title Description
IBM website (ibm.com®) Find more information about IBM products and
services.
IBM Support Portal
website(www.ibm.com/storage/
support)
Find support-related information such as downloads,
documentation, troubleshooting, and service requests
and PMRs.
IBM Directory of Worldwide
Contacts website(www.ibm.com/
planetwide)
Find contact information for general inquiries,
technical support, and hardware and software
support by country.
IBM DS8000 series website
(www.ibm.com/servers/storage/
disk/ds8000)
Find product overviews, details, resources, and
reviews for the DS8000 series.
IBM Redbooks®
website(www.redbooks.ibm.com/)
Find technical information developed and published
by IBM International Technical Support Organization
(ITSO).
IBM System Storage®Interoperation
Center (SSIC) website
(www.ibm.com/systems/support/
storage/config/ssic)
Find information about host system models,
operating systems, adapters, and switches that are
supported by the DS8000 series.
viii DS8882F Introduction and Planning Guide

Table 3. DS8000 series related websites (continued)
Title Description
IBM Storage SAN
(www.ibm.com/systems/storage/
san)
Find information about IBM SAN products and
solutions, including SAN Fibre Channel switches.
IBM Data storage feature activation
(DSFA) website
(www.ibm.com/storage/dsfa)
Download licensed machine code (LMC) feature keys
that you ordered for your DS8000 storage systems.
IBM Fix Central
(www-933.ibm.com/support/
fixcentral)
Download utilities such as the IBM Easy Tier®Heat
Map Transfer utility and Storage Tier Advisor tool.
IBM Java™SE (JRE)(www.ibm.com/
developerworks/java/jdk)
Download IBM versions of the Java SE Runtime
Environment (JRE), which is often required for IBM
products.
IBM Security Key Lifecycle
Manager online product
documentation(www.ibm.com/
support/knowledgecenter/
SSWPVP/)
This online documentation provides information
about IBM Security Key Lifecycle Manager, which
you can use to manage encryption keys and
certificates.
IBM Spectrum Control™online
product documentation in IBM
Knowledge Center
(www.ibm.com/support/
knowledgecenter)
This online documentation provides information
about IBM Spectrum Control, which you can use to
centralize, automate, and simplify the management of
complex and heterogeneous storage environments
including DS8000 storage systems and other
components of your data storage infrastructure.
DS8700 Code Bundle Information
website(www.ibm.com/support/
docview.wss?uid=ssg1S1003593)
Find information about code bundles for DS8700. See
section 3 for web links to SDD information.
The version of the currently active installed code
bundle displays with the DS CLI ver command when
you specify the -l parameter.
DS8800 Code Bundle Information
website(www.ibm.com/support/
docview.wss?uid=ssg1S1003740)
Find information about code bundles for DS8800. See
section 3 for web links to SDD information.
The version of the currently active installed code
bundle displays with the DS CLI ver command when
you specify the -l parameter.
DS8870 Code Bundle Information
website(www.ibm.com/support/
docview.wss?uid=ssg1S1004204)
Find information about code bundles for DS8870. See
section 3 for web links to SDD information.
The version of the currently active installed code
bundle displays with the DS CLI ver command when
you specify the -l parameter.
DS8880 Code Bundle Information
website(www.ibm.com/support/
docview.wss?uid=ssg1S1005392)
Find information about code bundles for DS8880.
The version of the currently active installed code
bundle displays with the DS CLI ver command when
you specify the -l parameter.
IBM Publications Center
The IBM Publications Center is a worldwide central repository for IBM product
publications and marketing material.
About this book ix

Procedure
The IBM Publications Center website (ibm.com/shop/publications/order) offers
customized search functions to help you find the publications that you need. You
can view or download publications at no charge.
Sending comments
Your feedback is important in helping to provide the most accurate and highest
quality information.
Procedure
To submit any comments about this publication or any other IBM storage product
documentation:
Send your comments by email to [email protected]. Be sure to include the
following information:
vExact publication title and version
vPublication form number (for example, GA32-1234-00)
vPage, table, or illustration numbers that you are commenting on
vA detailed description of any information that should be changed
xDS8882F Introduction and Planning Guide

Chapter 1. Overview
The IBM DS8882F Rack Mounted is a high-performance storage system that
supports continuous operation, data security, and data resiliency. For
high-availability, the hardware components are redundant.
DS8882F adds a modular rack-mountable enterprise storage system to the 533x
all-flash machine type family. The modular system can be integrated into 16U
contiguous space of an existing IBM z14™Model ZR1 (z14 Model ZR1), IBM
LinuxONE Rockhopper™II (z14 Model LR1), or other standard 19-inch wide rack
that conforms to EIA 310D specifications. The DS8882F allows you to take
advantage of the DS8880 advanced features while limiting datacenter footprint and
power infrastructure requirements. The modular system contains processor nodes,
an I/O enclosure, High Performance Flash Enclosures Gen2, a management
enclosure (which includes the HMCs, Ethernet Switches, and RPCs), and battery
backup modules to power the DS8882F modules. The HMCs are small form factor
computers.
The DS8884, DS8886, DS8884F, DS8886F, and DS8888F systems are not documented
in this publication. For information on those systems, refer to the DS8880
Introduction and Planning Guide (GC27-8525-16).
Licensed functions are available in four groups:
Base Function
The Base Function license is required for each DS8882F storage system. The
licensed functions include Database Protection, Encryption Authorization,
Easy Tier, I/O Priority Manager, the Operating Environment License, and
Thin Provisioning.
z-synergy Services
The z-synergy Services include z/OS®functions that are supported on the
storage system. The licensed functions include transparent cloud tiering,
High Performance FICON®for z Systems®, HyperPAV, PAV, and z/OS
Distributed Data Backup.
Copy Services
Copy Services features help you implement storage solutions to keep your
business running 24 hours a day, 7 days a week by providing data
duplication, data migration, and disaster recovery functions. The licensed
functions include Global Mirror, Metro Mirror, Metro/Global Mirror,
Point-in-Time Copy/FlashCopy®, z/OS Global Mirror, Safeguarded Copy,
and z/OS Metro/Global Mirror Incremental Resync (RMZ).
Copy Services Manager on Hardware Management Console
The Copy Services Manager on Hardware Management Console (CSM on
HMC) license enables IBM Copy Services Manager to run on the Hardware
Management Console, which eliminates the need to maintain a separate
server for Copy Services functions.
DS8880 also includes features such as:
vPOWER8®processors
vPower®-usage reporting
vNational Institute of Standards and Technology (NIST) SP 800-131A enablement
© Copyright IBM Corp. 2018 1

Other functions that are supported in both the DS8000 Storage Management GUI
and the DS command-line interface (DS CLI) include:
vEasy Tier
vData encryption
vThin provisioning
You can use the DS8000 Storage Management GUI and the DS command-line
interface (DS CLI) to manage and logically configure the storage system.
Functions that are supported in only the DS command-line interface (DS CLI)
include:
vPoint-in-time copy functions with IBM FlashCopy
vRemote Mirror and Copy functions, including
– Metro Mirror
– Global Copy
– Global Mirror
– Metro/Global Mirror
– z/OS Global Mirror
– z/OS Metro/Global Mirror
– Multiple Target PPRC
vI/O Priority Manager
DS8882F meets hazardous substances (RoHS) requirements by conforming to the
following EC directives:
vDirective 2011/65/EU of the European Parliament and of the Council of 8 June
2011 on the restriction of the use of certain hazardous substances in electrical
and electronic equipment. It has been demonstrated that the requirements
specified in Article 4 are met.
vEN 50581:2012 technical documentation for the assessment of electrical and
electronic products regarding the restriction of hazardous substances.
The IBM Security Key Lifecycle Manager stores data keys that are used to secure
the key hierarchy that is associated with the data encryption functions of various
devices, including the DS8000 series. It can be used to provide, protect, and
maintain encryption keys that are used to encrypt information that is written to
and decrypt information that is read from encryption-enabled disks. IBM Security
Key Lifecycle Manager operates on various operating systems.
Machine types overview
There are several machine type options available for the DS8882F. Order a
hardware machine type for the storage system and a corresponding function
authorization machine type for the licensed functions that are planned for use.
The following table lists the available hardware machine types and their
corresponding function authorization machine types.
2DS8882F Introduction and Planning Guide

Table 4. Available hardware and function-authorization machine types
Hardware Licensed functions
Hardware machine
type
Available hardware
models
Corresponding
function
authorization
machine type
Available function
authorization models
5331 (1-year warranty
period)
983
9046 (1-year warranty
period)
LF8
5332 (2-year warranty
period)
9047 (2-year warranty
period)
5333 (3-year warranty
period)
9048 (3-year warranty
period)
5334 (4-year warranty
period)
9049 (4-year warranty
period)
The machine types for the DS8882F specify the service warranty period. The
warranty is used for service entitlement checking when notifications for service are
called home. The model 983 reports 2107 as the machine type to attached host
systems.
Hardware
The architecture of the DS8882F is based on three major elements that provide
function specialization and three tiers of processing power.
The DS8882F architecture has the following major benefits.
f2c02629
HOST adapters
HOST adapters
Adaptor processors
Adapter processors Protocol management
Protocol management
Shared processors
cache
Shared processors
cache
Shared processors
cache
Shared processors
cache
Power server
Power server
Flash RAID adapters
Flash RAID adapters
Adapter processors RAID & sparing management
RAID & sparing managementAdapter processors
Power server
Power server
Figure 1. DS8882F architecture
Chapter 1. Overview 3

vServer foundation
– Promotes high availability and high performance by using field-proven Power
servers
– Reduces custom components and design complexity
– Positions the storage system to reap the benefits of server technology
advances
vOperating environment
– Promotes high availability and provides a high-quality base for the storage
system software through a field-proven AIX operating-system kernel
– Provides an operating environment that is optimized for Power servers,
including performance and reliability, availability, and serviceability
– Provides shared processor (SMP) efficiency
– Reduces custom code and design complexity
– Uses Power firmware and software support for networking and service
functions
DS8882F (machine type 533x model 983)
The DS8882F is an entry-level, high-performance storage system that includes only
High Performance Flash Enclosures Gen2.
DS8882F storage system features 6-core processors and is scalable and supports one
High Performance Flash Enclosure Gen2 pair with up to 48 Flash Tier 0, Flash Tier
1, or Flash Tier 2 drives. This modular rack-mountable enterprise storage system
can be integrated into 16U contiguous space of an existing IBM z14 Model ZR1
(z14 Model ZR1), IBM LinuxONE Rockhopper II (z14 Model LR1), or other
standard 19-inch wide rack that conforms to EIA 310D specifications to take
advantage of the DS8880 advanced features while limiting datacenter footprint and
power infrastructure requirements. The modular system contains processor nodes,
an I/O enclosure, High Performance Flash Enclosures Gen2, a management
enclosure (which includes the HMCs, Ethernet Switches, and RPCs), and battery
backup modules to power the DS8882F modules. The HMCs are small form factor
computers.
Note: The standard 19-inch wide rack installation (feature code 0939) supports an
optional 1U keyboard and display (feature code 1765). The 16U contiguous space
requirement does not include space for the optional keyboard and display, but they
are not required to reside contiguously with the DS8882F model 983. However, if
you add the keyboard and display, ensure that you provide adequate space to
accommodate them.
The DS8882F uses 16 Gbps Fibre Channel host adapters that run Fibre Channel
Protocol (FCP), FICON protocol. The High Performance FICON (HPF) feature is
also supported.
The DS8882F supports single-phase power.
For more specifications, see the IBM DS8000 series specifications web
site(www.ibm.com/systems/storage/disk/ds8000/specifications.html).
The following tables list the hardware components and maximum capacities that
are supported for the DS8882F, depending on the amount of memory that is
available.
4DS8882F Introduction and Planning Guide

Table 5. Components for the DS8882F (model 983)
Processors System memory Processor memory I/O enclosure
Host adapters (4
port)
High Performance Flash
Enclosure Gen2 pairs1
6-core 64 GB 32 GB 1 2 or 4 1
6-core 128 GB 64 GB 1 2 or 4 1
6-core 256 GB 128 GB 1 2 or 4 1
1. High Performance Flash Enclosures Gen2 are installed in pairs.
Table 6. Maximum capacity for the DS8882F (model 983)
Processors System memory
Maximum 2.5-in. Flash Tier 0,
Flash Tier 1, or Flash Tier 2 drives
Maximum storage capacity for
2.5-in. Flash Tier 0, Flash Tier 1, or
Flash Tier 2 drives
6-core 64 GB 48 365 TB
6-core 128 GB 48 365 TB
6-core 256 GB 48 365 TB
DS8882F (model 983) overview
The DS8882F (model 983) consists of eight 2U modules for installation in and
existing rack.
The model 983 includes the following components:
vHigh Performance Flash Enclosure Gen2 pair
vI/O enclosure
vTwo processor nodes (available with POWER8 processors)
vManagement enclosure
vTwo 3 kVA battery backup modules
Chapter 1. Overview 5

High Performance Flash Enclosures Gen2 pair
The High Performance Flash Enclosure Gen2 is a 2U storage enclosure that is
installed in pairs. For version 8.5, the model 983 supports only one High
Performance Flash Enclosure Gen2 pair.
The High Performance Flash Enclosure Gen2 pair provides two 2U storage
enclosures. This combination of components forms a high-performance,
fully-redundant flash storage array.
The High Performance Flash Enclosure Gen2 pair contains the following hardware
components:
vTwo 2U 24-slot SAS flash drive enclosures. Each of the two enclosures contains
the following components:
– Two power supplies with integrated cooling fans
– Two SAS Expander Modules with two SAS ports each
f2c02668
Battery Backup Module
Management Enclosure
IO Enclosure
High Performance
Flash Enclosure Gen2
Processor Node
Processor Node
Battery Backup Module
High Performance
Flash Enclosure Gen2
PDU
PDU
PDU
PDU
16U
Contiguous
Space
Existing Rack DS8882F model 983
Figure 2. DS8882F model 983 modules
6DS8882F Introduction and Planning Guide

– One midplane or backplane for plugging components that provides
maintenance of flash drives, Expander Modules, and power supplies
Management enclosure
The model 983 contains a management enclosure.
The management enclosure contains the following components:
vTwo Hardware Management Consoles (HMCs)
vTwo Ethernet switches
vTwo power control cards
vTwo power supply units (PSUs) to power the management enclosure
vOne Local/Remote switch assembly
Management console
The management console is also referred to as the Hardware Management Console
(or HMC). It supports storage system hardware and firmware installation and
maintenance activities.
The HMC connects to the customer network and provides access to functions that
can be used to manage the storage system. Management functions include logical
configuration, problem notification, call home for service, remote service, and Copy
Services management. You can perform management functions from the DS8000
Storage Management GUI, DS command-line interface (DS CLI), or other storage
management software that supports the storage system.
Ethernet switches
The Ethernet switches provide internal communication between the management
consoles and the processor complexes. Two redundant Ethernet switches are
provided.
Processor nodes
The processor nodes drive all functions in the storage system. Each node consists
of a Power server that contains POWER8 processors and memory.
I/O enclosure
The I/O enclosure provides connectivity between the adapters and the processor
complex.
The I/O enclosure uses PCIe interfaces to connect I/O adapters in the I/O
enclosure to both processor nodes. A PCIe device is an I/O adapter.
To improve I/O operations per second (IOPS) and sequential read/write
throughput, the I/O enclosure is connected to each processor node with a
point-to-point connection.
The I/O enclosure contains the following adapters:
Flash RAID adapters
PCIe-attached adapter with four SAS ports. These adapters connect the
processor nodes to enclosures and provide RAID controllers for RAID
support.
Host adapters
An I/O enclosure can support 8 or 16 host ports.
Chapter 1. Overview 7

Each of the four 16 Gbps Fibre Channel ports on a PCIe-attached adapter
can be independently configured to use SCSI/FCP or FICON/zHPF
protocols. Both longwave and shortwave adapter versions that support
different maximum cable lengths are available. The host-adapter ports can
be directly connected to attached hosts systems or storage systems, or
connected to a storage area network. SCSI/FCP ports are used for
connections between storage systems. SCSI/FCP ports that are attached to
a SAN can be used for both host and storage system connections.
The High Performance FICON Extension (zHPF) protocol can be used by
FICON host channels that have zHPF support. The use of zHPF protocols
provides a significant reduction in channel usage. This reduction improves
I/O input on a single channel and reduces the number of FICON channels
that are required to support the workload.
Power
Two redundant 3 kVA battery backup modules supply 230 V AC power to the
DS8882F storage system. Each battery backup module receives input power from a
single-phase line cord.
If both battery backup modules lose input power, they have sufficient capacity to
continue to supply AC power to the DS8882F until it has completed a fire hose
dump to protect modified data. The system will then gracefully power off.
Functional overview
The following list provides an overview of some of the features that are associated
with DS8882F.
Note: Some storage system functions are not available or are not supported in all
environments. See the IBM System Storage Interoperation Center (SSIC) website
(www.ibm.com/systems/support/storage/config/ssic) for the most current
information on supported hosts, operating systems, adapters, and switches.
Nondisruptive and disruptive activities
DS8882F supports full redundancy, but some components are a single point
of repair. It is designed to support nondisruptive changes: repair, and
licensed function upgrades. In addition, logical configuration changes can
be made nondisruptively. For example:
vAn increase in license scope is nondisruptive and takes effect
immediately. A decrease in license scope is also nondisruptive but does
not take effect until the next IML.
vEasy Tier helps keep performance optimized by periodically
redistributing data to help eliminate drive hot spots that can degrade
performance. This function helps balance I/O activity across the drives
in an existing drive tier. It can also automatically redistribute some data
to new empty drives added to a tier to help improve performance by
taking advantage of the new resources. Easy Tier does this I/O activity
rebalancing automatically without disrupting access to your data.
Energy reporting
You can use the DS8882F to display the following energy measurements
through the DS CLI:
vAverage inlet temperature in Celsius
vTotal data transfer rate in MB/s
vTimestamp of the last update for values
8DS8882F Introduction and Planning Guide

The derived values are averaged over a 5-minute period. For more
information about energy-related commands, see the commands reference.
You can also query power usage and data usage with the showsu
command. For more information, see the showsu description in the
Command-Line Interface User's Guide.
National Institute of Standards and Technology (NIST) SP 800-131A security
enablement
NIST SP 800-131A requires the use of cryptographic algorithms that have
security strengths of 112 bits to provide data security and data integrity for
secure data that is created in the cryptoperiod starting in 2014. The DS8880
is enabled for NIST SP 800-131A. Conformance with NIST SP 800-131A
depends on the use of appropriate prerequisite management software
versions and appropriate configuration of the DS8880 and other
network-related entities.
Storage pool striping (rotate capacity)
Storage pool striping is supported on the DS8000 series, providing
improved performance. The storage pool striping function stripes new
volumes across all arrays in a pool. The striped volume layout reduces
workload skew in the system without requiring manual tuning by a
storage administrator. This approach can increase performance with
minimal operator effort. With storage pool striping support, the system
automatically performs close to highest efficiency, which requires little or
no administration. The effectiveness of performance management tools is
also enhanced because imbalances tend to occur as isolated problems.
When performance administration is required, it is applied more precisely.
You can configure and manage storage pool striping by using the DS8000
Storage Management GUI, DS CLI, and DS Open API. The rotate capacity
allocation method (also referred to as rotate volumes) is an alternative
allocation method that tends to prefer volumes that are allocated to a
single managed array, and is not recommended. The rotate extents option
(storage pool striping) is designed to provide the best performance by
striping volumes across arrays in the pool. Existing volumes can be
reconfigured nondisruptively by using manual volume migration and
volume rebalance.
The storage pool striping function is provided with the DS8000 series at no
additional charge.
Performance statistics
You can use usage statistics to monitor your I/O activity. For example, you
can monitor how busy the I/O ports are and use that data to help manage
your SAN. For more information, see documentation about performance
monitoring in the DS8000 Storage Management GUI.
Sign-on support that uses Lightweight Directory Access Protocol (LDAP)
The DS8882F system provides support for both unified sign-on functions
(available through the DS8000 Storage Management GUI), and the ability
to specify an existing Lightweight Directory Access Protocol (LDAP) server.
The LDAP server can have existing users and user groups that can be used
for authentication on the DS8882F system.
Setting up unified sign-on support for the DS8882F system is achieved by
using IBM Copy Services Manager or IBM Spectrum Control. .
Note: Other supported user directory servers include IBM Directory Server
and Microsoft Active Directory.
Chapter 1. Overview 9

Easy Tier
Easy Tier is an optional feature that offers enhanced capabilities through
features such as auto-rebalancing, hot spot management, rank
depopulation, and manual volume migration.
Easy Tier enables the DS8882F system to automatically balance I/O access
to drives to avoid hot spots on arrays.
Easy Tier can benefit homogeneous drive pools because it can move data
away from over-utilized arrays to under-utilized arrays to eliminate hot
spots and peaks in drive response times.
z-synergy
The DS8882F storage system can work in cooperation with IBM Z hosts to
provide the following performance enhancement functions.
vExtended Address Volumes
vHigh Performance FICON for IBM Z
vI/O Priority Manager with z/OS Workload Manager
vParallel Access Volumes and HyperPAV (also referred to as aliases)
vQuick initialization for IBM Z
vTransparent cloud tiering
Copy Services
The DS8882F storage system supports a wide variety of Copy Service
functions, including Remote Mirror, Remote Copy, and Point-in-Time
functions. The following includes key Copy Service functions:
vFlashCopy
vRemote Pair FlashCopy (Preserve Mirror)
vSafeguarded Copy
vRemote Mirror and Copy:
– Metro Mirror
– Global Copy
– Global Mirror
– Metro/Global Mirror
– Multiple Target PPRC
– z/OS Global Mirror
– z/OS Metro/Global Mirror
Multitenancy support (resource groups)
Resource groups provide additional policy-based limitations. Resource
groups, together with the inherent volume addressing limitations, support
secure partitioning of Copy Services resources between user-defined
partitions. The process of specifying the appropriate limitations is
performed by an administrator using resource groups functions. DS CLI
support is available for resource groups functions.
Multitenancy can be supported in certain environments without the use of
resource groups, if the following constraints are met:
vEither Copy Services functions are disabled on all DS8000 systems that
share the same SAN (local and remote sites) or the landlord configures
the operating system environment on all hosts (or host LPARs) attached
to a SAN, which has one or more DS8000 systems, so that no tenant can
issue Copy Services commands.
10 DS8882F Introduction and Planning Guide