User Manuals: EMC Symmetrix DMX-3 Storage Array

User Manuals: EMC Symmetrix DMX-3 Storage Array

Manuals and User Guides for EMC Symmetrix DMX-3 Storage Array. We have 1 EMC Symmetrix DMX-3 Storage Array manual available for free PDF download: Product Manual

EMC Symmetrix DMX-3 Product Manual

EMC Symmetrix DMX-3 Product Manual (326 pages)

Brand: EMC | Category: Storage | Size: 8.77 MB

Table of Contents

Table of Contents
3
Warnings and Cautions

17
Preface

21
Chapter 1 Introducing the Symmetrix DMX-3

25
Chapter 2 Symmetrix DMX-3 Hardware

47
Chapter 3 Symmetrix DMX-3 Input/Output Operations

101
- Symmetrix DMX-3 Operation
  102
- Host Cache Use
  102
  - Symmetrix Global Memory Management
    103
- Symmetrix Global Memory Management and Data Flow
  103
- Elements of a Symmetrix I/O Operation
  105
  - I/O Response Time: Mainframe Environment
    105
- I/O Response Time (Mainframe Environment)
  105
  - I/O Response Time: Open Systems Environment
    106
- I/O Response Time (Open Systems Environment)
  106
  - Symmetrix I/O Operations
    106
- Symmetrix I/O Operations
  107
  - Read Operations
    108
- Read Hit
  108
- Read Miss
  109
  - Write Operations
    110
- Fast Write
  111
- Delayed Fast Write
  111
  - Write Destaging Operation
    112
- Destaging Operation
  112
- I/O Performance Enhancements
  113
Chapter 4 Performance and Optimization

115
- Overview
  116
- Global Memory Performance Features
  117
  - Global Memory Asics
    118
  - Tag Based Caching (TBC)
    119
- TBC LRU Function
  119
- Symmetrix File System Performance Features
  122
- Multiple Channel Directors
  124
  - Channel Speeds and Cable Lengths
    124
  - Host Connectivity
    126
- Open Systems Hypervolumes
  127
  - Hypervolume Extension Feature
    127
  - Disk Drive Cylinders
    127
  - Data Protection Options
    127
  - Logical Volume Mapping
    128
  - Metavolumes
    128
- Logical Volume Mapping (8:1)
  128
  - Symmetrix Open Systems Disk Capacities and Cylinders
    128
- Concatenated Volumes
  130
- Striped Data
  130
- Mainframe Systems Hypervolumes
  132
- Tiered Storage Optimization
  136
  - Symmetrix Priority Controls
    136
  - Dynamic Cache Partitioning
    137
- Optimizing Symmetrix System Performance
  139
  - Performance Guidelines for Open System Devices
    139
  - Virtual LUN Technology
    140
  - Virtual LUN Management
    140
- SMC Migration Dialog Step 1
  142
- SMC Migration Dialog Step 2
  143
- SMC Migration Dialog Step 3
  144
- Dynamic Host Addressing
  145
- Virtual Provisioning
  146
- Multiport Volume Access for Open Systems Environments
  149
- Software Options Overview
  150
  - EMC Controlcenter Family of Products
    150
  - Symmetrix Optimizer
    153
  - Timefinder Family of Products
    154
  - Solutions Enabler
    155
  - Symmetrix Management Console
    155
Chapter 5 Data Integrity, Availability, and Protection

158
- Overview
  158
- Reliability and Availability Features
  162
  - Reliable Components
    162
  - Global Memory Director Data Integrity
    162
  - Redundant Global Memory
    162
  - Channel Director Redundancy
    163
  - Symmetrix DMX-3 Channel Director Connectivity
    163
  - Internal Control Data Path Redundancy
    164
  - Fibre Channel Back-End Redundancy
    164
  - Fibre Channel Arbitrated Loop Design
    165
- Fibre Channel Back-End Redundancy
  167
  - Dual-Initiator Feature
    168
  - Redundant Power Subsystem
    169
- Symmetrix DMX Dual-Initiator Example
  169
  - Vaulting
    170
  - Power Loss to One Power Zone
    170
  - Battery Backup Units
    171
  - Nondisruptive Component Replacement
    172
  - Nondisruptive Enginuity Upgrades
    173
  - Nondisruptively Change or Remove FBA Devices
    174
  - Deleting (and then Adding) Devices Online
    174
- Maintaining Data Integrity
  175
  - Remote Support
    175
  - Error Checking and Correction, and Data Integrity Protection
    176
- Data Record Format for Conventional DASD
  176
  - Disk Error Correction and Error Verification
    177
- Symmetrix Data Record Format
  177
- DMX-3 Security Features
  181
  - Security Overview
    182
  - Symmetrix Service Credential, Secured by RSA
    182
  - Access Control and User Authorization
    183
  - Symmetrix Audit Log
    185
  - RSA Envision Log Security
    185
  - EMC Certified Data Erasure for Symmetrix Disks
    186
  - Ipsec Security Features
    187
- Data Protection Guidelines
  189
- Disk Mirroring (RAID 1) Concepts
  191
  - Advantages of Mirroring
    191
  - Write Operations with Mirroring
    191
  - Read Operations with Mirroring
    192
  - Error Recovery with Mirroring
    192
  - Dynamic Mirror Service Policy (DMSP)
    193
  - Business Continuance Volumes (BCV)
    193
  - Virtual Devices
    194
- Symmetrix RAID 1/0 for Open Systems
  195
- Symmetrix RAID 10 for Mainframe Systems
  196
- RAID 10 with Dynamic Mirror Service Policy
  196
- Symmetrix DMX RAID 5
  198
  - RAID 5 Overview
    198
  - RAID 5 Attributes
    198
  - RAID 5 Device (Volume)
    198
  - Raid 5 (3+1)
    199
  - Raid 5 (7+1)
    199
  - RAID 5 Modes of Operation
    199
- RAID 5 Data/Parity (3+1)
  199
  - Normal Mode
    200
  - RAID 5 Write Operation Sequence in Normal Mode
    200
- Writing Data in RAID 5 Normal Mode
  201
  - Regeneration
    202
- Reading Data in RAID 5 Normal Mode
  202
  - RAID 5 Performance Optimization
    204
  - RAID 5 Configuration Guidelines
    205
  - RAID 5 Configuration Rules
    205
- Symmetrix DMX RAID 6
  206
  - RAID 6 Overview
    206
  - RAID 6 Attributes
    206
  - RAID 6 Device (Volume)
    206
  - Even-Odd Algorithm
    207
  - Raid 6 (6+2)
    208
  - Raid 6 (14+2)
    208
- RAID 6 (6+2) Data/Parity Layout
  208
  - Rebuilding Data and Parity Members
    209
- Raid 6 (14+2)
  209
  - RAID 6 Configuration Guidelines
    210
  - Comparing RAID 5 and RAID 6
    210
  - RAID 5 and RAID 6 Comparison
    210
- Sparing in Symmetrix Systems
  211
  - Sparing Configuration Rules and Guidelines
    211
  - Special DMX-3 Sparing Considerations
    211
  - Sparing Benefits
    213
  - Permanent Sparing
    213
- Permanent Sparing Process
  215
  - Dynamic Sparing
    216
- Dynamic Sparing Process
  217
- Dynamic Sparing with Locally Mirrored Pairs
  219
- SRDF Family of Products
  221
  - Base SRDF Family Products
    221
  - SRDF Family Options
    222
  - SRDF/A Resiliency Features
    222
Chapter 6 Mainframe Features and Support

226
- Introduction
  226
- Supported Mainframe Features
  227
  - EMC Z/Os Storage Manager
    227
  - Dynamic Channel Management
    228
  - Dynamic Path Reconnection
    228
  - Concurrent Copy
    228
  - Compatible Native Flash for Mainframe
    229
  - Multi-Path Lock Facility/Concurrent Access
    230
  - Multisubsystem Imaging
    230
  - Sequential Data Striping
    230
  - Partitioned Data Set (PDS) Assist
    230
  - Multiple Allegiance (MA)
    231
  - Parallel Access Volumes
    231
  - Compatible Hyperpav
    231
  - Dynamic Parallel Access Volumes
    231
- Dynamic Support of Parallel Access Volumes
  232
  - RAID 10 Striping
    233
  - Supported ESCON Devices and Logical Paths
    234
- Supported ESCON Logical Paths Per Port
  234
  - Supported FICON Devices and Logical Paths
    235
  - IBM Metromirror (PPRC)
    235
- Supported FICON Logical Paths Per Port
  235
  - XRC Support
    236
- PPRC and GDPS Support
  236
  - Configuring CKD Volumes
    237
- XRC Overview
  237
- Error Reporting and Recovery
  240
  - Types of Errors
    240
  - Error Reporting
    242
  - Environmental Errors Reported as SIM Messages
    244
  - Operator Messages
    246
- Z/Os IEA480E Service Alert Error Message Format (AC Power Failure)
  246
- (Mirror-1 Volume in "Not Ready" State)
  247
- (Mirror-2 Resynchronization)
  247
  - EREP Reports
    248
- Z/Os IEA480E Service Alert Error Message Format (Mirror-1 Resynchronization)
  248
  - Error Handling
    249
  - Error Handling Steps
    249
  - Detecting the Error
    250
- Sense Byte Information
  251
  - Console Error Messages
    251
- Typical Console Error Message
  251
  - Unit Status Bits
    252
  - Channel Status Bits
    252
  - Host Sense Byte Data Formats
    253
Appendix A Symmetrix DMX-3 Specifications

256
Symmetrix DMX-3 Specifications

256
Power Sequences

277
Appendix B Power Sequences

278
Appendix C Planning and Installation

284
Planning and Installation

284
Glossary

309
Index

321

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