Manuels d'utilisation pour Compaq HSZ80

Table des matières

• HSZ80 Array Controller ACS Version 8.3

  1
• About This Guide

  15
  • Getting Help

    15
    • Compaq Website

      15
    • Telephone Numbers

      15
  • Precautions

    16
    • Electrostatic Discharge Precautions

      16
    • Component Precaution

      16
    • VHDCI Cable Precautions

      17
    • Maintenance Port Precautions

      17
  • Conventions

    18
    • Typographical Conventions

      18
    • Special Notices

      19
  • Required Tools

    20
  • Related Publications

    21
  • Revision History

    22
• Chapter 1

  23
• General Description

  23
  • Typical Installation

    24
    • Figure 1–1. Basic Building Block

      25
    • Table 1–1 Basic Building Blocks List 

      26
  • Summary of HSZ80 Features

    27
    • Table 1–2 Summary of Controller Features (Continued)

      27
  • The HSZ80 Array Controller

    29
    • Figure 1–2. Bridging the Gap Between the Host and Its Storage Subsystem

      29
    • Figure 1–3. HSZ80 Array Controller

      31
    • Table 1–3 HSZ80 Array Controller

      31
    • Figure 1–4. Parts Used in Configuring the HSZ80 Array Controller

      32
    • Table 1–4 Description of Parts (Continued)

      32
    • Figure 1–5. Optional Maintenance Port Cable for a Terminal Connection

      34
    • Table 1–5 Parts of the Optional Maintenance Port Cable

      34
    • Figure 1–6. Location of Controllers and Cache Modules

      35
    • Operator Control Panel

      35
      • Figure 1–7. HSZ80 Controller Operator Control Panel (OCP)

        36
    • Maintenance Port

      36
    • Utilities and Exercisers

      37
      • Fault Management Utility

        37
      • Virtual Terminal Display

        37
      • Disk Inline Exerciser

        38
      • Configuration Utility

        38
      • HSUTIL

        38
      • Code Load and Code Patch Utility

        38
      • Clone Utility

        38
      • Field Replacement Utility

        39
      • Change Volume Serial Number Utility

        39
      • Device Statistics Utility

        39
  • Cache Module

    40
    • Table 1–6 Cache Module Memory Configurations 

      40
    • Figure 1–8. Cache Module

      41
    • Table 1–7 Location of Cache Module Parts

      41
    • Caching Techniques

      42
      • Read Caching

        42
      • Read-Ahead Caching

        42
      • Write-Through Caching

        43
      • Write-Back Caching

        43
    • Fault-Tolerance for Write-Back Caching

      44
      • Nonvolatile Memory

        44
      • Cache Policies Resulting from Cache Module Failures

        44
        • Table 1–8 Cache Policies and Cache Module Status (Continued)

          45
        • Table 1–9 Resulting Cache Policies and ECB Status (Continued)

          47
  • External Cache Battery

    51
    • Table 1–10 ECB Capacity Based on Memory Size

      51
    • Figure 1–9. ECB for Dual-Redundant Controller Configurations

      52
    • Table 1–11 Location of Parts

      52
    • Charging Diagnostics

      53
      • Battery Hysteresis

        53
• Chapter 2

  55
• Configuring an HSZ80 Array Controller

  55
  • Introduction

    56
    • Configuration Rules

      56
  • Configuring an HSZ80 Array Controller

    57
    • A Few Tips

      57
    • Configuring a Single Controller

      59
      • Figure 2–1. Cabling for a Single-Controller Configuration

        59
      • Table 2–1 Location of Parts for a Single Controller Configuration 

        59
    • Connecting a Single Controller to the Host

      63
    • Configuring Dual-Redundant Controllers in Transparent Failover Mode

      64
      • Figure 2–2. Cabling for a Dual-Redundant Controller Configuration in Transparent Failover

        64
      • Table 2–2 Location of Parts for Transparent Failover

        65
    • Connecting in Transparent Failover Mode to the Host

      69
    • Configuring Dual-Redundant Controllers in Multiple-Bus Failover Mode

      70
      • Figure 2–3. Cabling for a Dual-Redundant Controller Configuration in Multiple-Bus Failover

        70
      • Table 2–3 Location of Parts for Multiple-Bus Failover 

        71
    • Connecting in Multiple-Bus Failover Mode to the Host

      75
    • Optional Steps

      76
      • Change the CLI prompt

        76
      • Set the maximum data-transfer rate

        77
      • UPS Support

        78
  • Setting the PVA Module ID Switch

    79
    • Figure 2–4. SCSI Target ID Numbers on the Controller Device Bus and PVA Settings in an Extended S...

      79
  • Establishing a Local Connection to the Controller

    80
    • Figure 2–5. PC/Terminal to Maintenance Port Connection

      81
    • Figure 2–6. “This Controller” and “Other Controller”

      82
  • Selecting a Failover Mode

    83
    • Using Transparent Failover Mode

      83
    • Using Multiple-Bus Failover Mode

      84
  • Enabling Mirrored Write-Back Cache

    85
    • Selecting a Cache Mode

      85
    • Fault-Tolerance

      86
  • Setting SCSI Target ID Numbers

    87
    • Figure 2–7. Host SCSI Bus and Controller Device Bus

      87
    • Host SCSI Bus

      87
    • Device SCSI Bus

      88
  • Using Preferred ID Numbers

    89
• Chapter 3

  91
• Creating Storagesets

  91
  • Introduction

    92
    • Figure 3–1. Units Created from Storagesets, Partitions, and Drives

      93
    • Table 3–1 Controller Limitations for RAIDsets

      93
  • Planning and Configuring Storagesets

    94
  • Creating a Storageset and Device Profile

    95
    • Figure 3–2. Storageset Profile

      96
  • Determining Storage Requirements

    97
  • Choosing a Storageset Type

    98
    • Table 3–2 A Comparison of Different Kinds of Storagesets

      98
    • Using Stripesets to Increase I/O Performance

      99
      • Figure 3–3. Striping Lets Several Disk Drives Participate in Each I/O Request

        99
      • Considerations for Planning a Stripeset

        100
        • Figure 3–4. Distribute Members across Ports

          101
    • Using Mirrorsets to Ensure Availability

      102
      • Figure 3–5. Mirrorsets Maintain Two Copies of the Same Data

        103
      • Considerations for Planning a Mirrorset

        103
        • Figure 3–6. First Mirrorset Members on Different Buses

          104
    • Using RAIDsets to Increase Performance and Availability

      105
      • Figure 3–7. Parity Ensures Availability; Striping Provides Good Read Performance

        106
      • Considerations for Planning a RAIDset

        106
    • Using Striped Mirrorsets for Highest Performance and Availability

      108
      • Figure 3–8. Striping and Mirroring in the Same Storageset

        108
      • Considerations for Planning a Striped Mirrorset

        109
  • Cloning Data for Backup

    110
    • Figure 3–9. CLONE Steps for Duplicating Unit Members

      111
  • Backing Up Your Subsystem Configuration

    115
    • Saving Subsystem Configuration Information to a Single Disk

      115
    • Saving Subsystem Configuration Information to Multiple Disks

      116
    • Saving Subsystem Configuration Information to a Storageset

      116
      • Displaying the Status of the Save Configuration Feature

        117
  • Node IDs

    120
    • Restoring Node IDs

      120
  • Assigning Unit Numbers for Host Access to Storagesets

    122
    • Table 3–3 Unit Numbering Examples

      123
  • Creating a Storageset Map

    124
    • Figure 3–10. Storageset Map

      125
    • Device PTL Addressing Convention within the Controller

      126
      • Figure 3–11. PTL Naming Convention

        127
      • Figure 3–12. PTL Addressing in an Extended Configuration

        128
      • Figure 3–13. Locating Devices using PTLs

        129
  • Planning Partitions

    130
    • Figure 3–14. Partitioning a Single-Disk Unit

      130
    • Defining a Partition

      130
    • Guidelines for Partitioning Storagesets and Disk Drives

      131
  • Choosing Switches for Storagesets and Devices

    132
    • Enabling Switches

      132
    • Changing Switches

      132
  • RAIDset Switches

    133
    • Replacement Policy

      133
    • Reconstruction Policy

      133
    • Membership

      134
  • Mirrorset Switches

    135
    • Replacement Policy

      135
    • Copy Speed

      136
    • Read Source

      136
    • Disaster Tolerance Support

      137
  • Device Switches

    138
    • Transportability

      138
    • Device Transfer Rate

      139
    • Local/Remote

      140
  • Initialize Switches

    141
    • Chunk Size

      141
      • Increasing the Request Rate

        142
        • Figure 3–15. Chunk Size Larger than the Request Size

          142
      • Increasing the Data Transfer Rate

        143
        • Figure 3–16. Chunk Size Smaller than the Request Size

          143
      • Increasing Sequential Write Performance

        144
      • Maximum Chunk Size for RAIDsets

        144
        • Table 3–4 Maximum Chunk Sizes for a RAIDset

          144
    • Save Configuration

      145
      • Considerations for Saving the Configuration

        145
      • Saving Configuration Information in Dual-Redundant Controller Configurations

        146
    • Destroy/Nodestroy

      147
  • Unit Switches

    148
    • Table 3–5 UNIT Switches for Storagesets

      148
• Chapter 4

  149
• Configuring Storagesets

  149
  • Introduction

    150
    • Adding Disk Drives

      150
      • Adding One Disk Drive at a Time

        150
      • Adding Several Disk Drives at a Time

        150
    • Configuring a Stripeset

      151
    • Configuring a Mirrorset

      152
    • Configuring a RAIDset

      154
    • Configuring a Striped Mirrorset

      155
    • Configuring a Single-Disk Unit

      157
    • Partitioning a Storageset or Disk Drive

      158
    • Adding a Disk Drive to the Spareset

      161
    • Removing a Disk Drive from the Spareset

      162
    • Enabling Autospare

      163
    • Deleting a Storageset

      164
    • Changing Switches for a Storageset or Device

      165
      • Displaying the Current Switches

        165
      • Changing RAIDset and Mirrorset Switches

        165
      • Changing Device Switches

        165
      • Changing Initialize Switches

        166
      • Changing Unit Switches

        166
  • Configuring with the Command Console LUN

    167
    • Enabling and Disabling the CCL

      167
    • Finding the CCL Location

      168
    • Multiple-Port and Multiple-Host Use

      168
      • SCSI-2 Mode

        168
      • SCSI-3 Mode

        168
    • Troubleshooting with the CCL

      169
    • Adding Storage Units with the CCL

      169
      • SCSI-2 Mode

        170
      • SCSI-3 Mode

        170
  • Configuring Units with Multiple Hosts

    171
    • Host Modes

      171
      • Figure 4–1. Setting Host Modes

        173
    • Transparent Failover Mode

      174
      • Designating the Port

        174
        • Figure 4–2. Accessing Units on a Given Port

          175
      • Designating the Host SCSI ID Number

        176
        • Figure 4–3. Accessing Units with the Host Port’s SCSI ID Number

          177
      • Designating the Port and Designating the Host SCSI ID Number

        178
        • Figure 4–4. Accessing Units through Port Access and the Host Port’s SCSI ID Number

          179
    • Multiple-Bus Failover Mode

      180
      • Figure 4–5. Assigning Units through Multiple Host Adapters

        181
  • Moving Storagesets

    183
    • Figure 4–6. Moving a Storageset from one Subsystem to Another

      183
• Chapter 5

  187
• CLI Commands

  187
  • CLI Overview

    188
    • Using the CLI

      188
    • Command Overview

      188
    • Getting Help

      189
    • Entering CLI Commands

      189
      • Table 5–1 Recall and Edit Command Keys

        190
    • Unit Naming

      190
      • Table 5–2 Unit Numbering Examples

        191
    • Changing the CLI Prompt

      192
    • Command Syntax

      192
  • ADD DISK

    193
    • Syntax

      193
    • Parameters

      193
    • Switches

      194
    • See also

      196
  • ADD MIRRORSET

    197
    • Syntax

      197
    • Parameters

      197
    • Switches

      197
    • See also

      201
  • ADD PASSTHROUGH

    202
    • Syntax

      202
    • Parameter

      202
    • See also

      204
  • ADD RAIDSET

    205
    • Syntax

      205
    • Parameters

      205
    • Switches

      206
    • See also

      208
  • ADD SPARESET

    209
    • Syntax

      209
    • Parameter

      209
    • See also

      209
  • ADD STRIPESET

    210
    • Syntax

      210
    • Parameters

      210
    • See also

      212
  • ADD UNIT

    213
    • Syntax

      213
    • Parameters

      213
    • Switches

      214
      • Table 5–3 ADD UNIT Switches for Storagesets

        214
    • See also

      220
  • CLEAR_ERRORS CLI

    221
    • Syntax

      221
    • See also

      221
  • CLEAR_ERRORS controller INVALID_CACHE

    222
    • Syntax

      222
    • Parameters

      222
    • See also

      223
  • CLEAR_ERRORS device-name UNKNOWN

    224
    • Syntax

      224
    • Parameters

      224
    • See also

      225
  • CLEAR_ERRORS unit-number LOST_DATA

    226
    • Syntax

      226
    • Parameters

      226
    • See also

      227
  • CLEAR_ERRORS unit-number UNWRITEABLE_DATA

    228
    • Syntax

      228
    • Parameters

      228
    • See also

      229
  • CONFIGURATION RESET

    230
    • Syntax

      230
    • See also

      230
  • CONFIGURATION RESTORE

    231
    • Syntax

      231
    • See also

      232
  • CONFIGURATION SAVE

    233
    • Syntax

      233
    • See also

      233
  • CREATE_PARTITION

    234
    • Syntax

      234
    • Parameters

      234
    • See also

      236
  • DELETE container-name

    237
    • Syntax

      237
    • Parameters

      237
    • See also

      238
  • DELETE FAILEDSET

    239
    • Syntax

      239
    • Parameter

      239
    • See also

      239
  • DELETE SPARESET

    240
    • Syntax

      240
    • Parameter

      240
    • See also

      240
  • DELETE unit-number

    241
    • Syntax

      241
    • Parameter

      241
    • See also

      242
  • DESTROY_PARTITION

    243
    • Syntax

      243
    • Parameters

      243
    • See also

      244
  • DIRECTORY

    245
    • Syntax

      245
    • See also

      245
  • HELP

    246
    • Syntax

      246
  • INITIALIZE

    248
    • Syntax

      248
    • Parameters

      249
    • Switches

      249
  • LOCATE

    253
    • Syntax

      253
    • Parameters

      253
  • MIRROR

    256
    • Syntax

      256
    • Parameters

      256
    • Switches

      257
    • See also

      259
  • POWEROFF

    260
    • Syntax

      260
    • Switches

      260
      • Table 5–4 Poweroff Switch Settings (Continued)

        261
  • REDUCE

    263
    • Syntax

      264
    • Parameters

      264
    • See also

      266
  • RENAME

    267
    • Syntax

      267
    • Parameters

      267
  • RESTART controller

    269
    • Syntax

      269
    • Parameters

      269
    • Switches

      269
    • See also

      270
  • RETRY_ERRORS unit-number UNWRITEABLE_DATA

    271
    • Syntax

      271
    • Parameter

      271
    • See also

      271
  • RUN

    272
    • Syntax

      272
    • Parameter

      272
    • See also

      274
  • SELFTEST controller

    275
    • Syntax

      275
    • Parameters

      275
    • Switches

      275
    • See also

      276
  • SET controller

    277
    • Syntax

      277
    • Parameter

      277
    • Switches

      277
      • Table 5–5 SET controller Switches (Continued)

        277
      • Table 5–6 Maximum SCSI-Bus Lengths for Given Data Transfer Rate

        286
    • See also

      287
  • SET device-name

    288
    • Syntax

      288
    • Parameter

      288
    • Switches

      288
    • See also

      290
  • SET EMU

    291
    • Syntax

      291
    • Switches

      291
      • Table 5–7 EMU Set Point Temperatures 

        292
    • See also

      293
  • SET FAILEDSET

    294
    • Syntax

      294
    • Switches

      294
    • See also

      295
  • SET FAILOVER

    296
    • Syntax

      296
    • Parameters

      296
    • See also

      297
  • SET mirrorset-name

    298
    • Syntax

      298
    • Parameter

      298
    • Switches

      298
    • See also

      303
  • SET MULTIBUS_FAILOVER

    304
    • Syntax

      304
    • Parameters

      304
    • See also

      305
  • SET NOFAILOVER

    306
    • Syntax

      306
    • Switches

      306
    • See also

      307
  • SET NOMULTIBUS_FAILOVER

    308
    • Syntax

      308
    • Switches

      308
    • See also

      309
  • SET RAIDset-name

    310
    • Syntax

      310
    • Parameters

      310
    • Switches

      310
    • See also

      313
  • SET unit-number

    314
    • Syntax

      314
    • Parameter

      314
    • Switches

      314
      • Table 5–8 SET UNIT Switches for Existing Containers

        315
    • See also

      321
  • SHOW

    322
    • Syntax

      322
    • Parameters

      322
    • Switches

      324
  • SHUTDOWN controller

    329
    • Syntax

      329
    • Parameter

      329
    • Switches

      329
    • See also

      330
  • UNMIRROR

    331
    • Syntax

      331
    • Parameter

      331
    • See also

      332
• Appendix A

  333
• System Profiles

  333
  • Device Profile

    334
  • Storageset Profile

    335
  • Enclosure Template

    336
• Appendix B

  337
• Controller Specifications

  337
  • Physical and Electrical Specifications for the Controller

    338
    • Table B–1 Controller Specifications

      338
  • Environmental Specifications

    339
    • Table B–2 Optimum Operating Environmental Specifications

      339
    • Table B–3 Maximum Operating Environmental Specifications

      340
    • Table B–4 Maximum Nonoperating Environmental Specifications

      340
• Glossary

  341
• Index

  361