HP Array Controller HSG V8.7 Software User Manual

HP Storage

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EK-HSG80-UG. B01

Digital Equipment Corporation
Maynard, Massachusetts

DIGITAL

HSG80 Array Controller ACS Version 8.2

User’s Guide

Table of contents

Document Outline

Figures
Tables
Preface
Precautions
- Electrostatic Discharge Precautions
- Component Precaution
- Maintenance Port Precautions
Conventions
- Typographical Conventions
- Special Notices
Required Tools
Related Publications
Revision History
chapter 1
- General Description
- The HSG80 Array Controller Subsystem
  - Figure 1–1 The HSG80 Subsystem
    - Table 1–1 Key to Figure 1–1The HSG80 Subsystem (Continued)
  - Summary of HSG80 Features
    - Table 1–2 Controller Features (Continued)
- The HSG80 Array Controller
- Cache Module
- External Cache Battery
chapter 2
- Configuring an HSG80 Array Controller
- Introduction
  - Configuration Rules
- Configuring an HSG80 Array Controller
- Setting the PVA Module ID Switch
  - Figure 2–1 SCSI Target ID Numbers on the Controller Device Bus and PVA Settings in an Extended Su...
- Establishing a Local Connection to the Controller
  - Figure 2–2 Terminal to Local-Connection Port Connection
  - Figure 2–3 “This Controller” and “Other Controller”
- Selecting a Failover Mode
  - Using Transparent Failover
  - Using Multiple-Bus Failover
- Enabling Mirrored Write-Back Cache
- Connecting the Subsystem to the Host
  - Connecting a Single Controller to the Host Using One Hub
    - Figure 2–4 Cabling for Single Configuration with Fibre Channel Copper Support
      - Table 2–1 Key to Figure 2–4 Cabling for Single Configuration (copper)
    - Figure 2–5 Cabling for Single Configuration with Fibre Channel Optical Support
      - Table 2–2 Key to Figure 2–5 Cabling for Single Configuration (optical)
  - Connecting a Dual-Redundant Controller Configuration to the Host
chapter 3
- Creating Storagesets
- Introduction
  - Figure 3–1 Units Created from Storagesets, Partitions, and Drives
  - Table 3–1 Controller Limitations for RAIDsets
- Planning and Configuring Storagesets
- Creating a Storageset and Device Profile
  - Figure 3–2 A Typical Storageset Profile
- Determining Storage Requirements
- Choosing a Storageset Type
  - Table 3–2 A Comparison of Different Kinds of Storagesets
  - Using Stripesets to Increase I/O Performance
    - Figure 3–3 Striping Lets Several Disk Drives Participate in Each I/O Request
    - Figure 3–4 Distribute Members across Ports
  - Using Mirrorsets to Ensure Availability
    - Figure 3–5 Mirrorsets Maintain Two Copies of the Same Data
    - Figure 3–6 First Mirrorset Members on Different Buses
  - Using RAIDsets to Increase Performance and Availability
    - Figure 3–7 Parity Ensures Availability; Striping Provides Good Performance
  - Using Striped Mirrorsets for Highest Performance and Availability
    - Figure 3–8 Striping and Mirroring in the Same Storageset
- Cloning Data for Backup
  - Figure 3–9 CLONE Steps for Duplicating Unit Members
- Backing Up Your Subsystem Configuration
  - Saving Subsystem Configuration Information to a Single Disk
  - Saving Subsystem Configuration Information to Multiple Disks
  - Saving Subsystem Configuration Information to a Storageset
- Controller and Port Worldwide Names (Node IDs)
  - Restoring Worldwide Names (Node IDs)
  - Unit World Wide Names (LUN IDs)
- Assigning Unit Numbers for Host Access to Storagesets
  - Figure 3–10 Controller Port ID and Unit Numbers in Transparent Failover Mode
  - Figure 3–11 Controller Port ID Numbers and Unit Numbers in Mulitple Bus Failover Mode
  - Assigning Unit Offsets
    - Figure 3–12 LUN Presentation Using Unit Offset on a Per-Host Basis
  - Assigning Access Paths
- Creating a Storageset Map
  - Figure 3–13 Storageset Map
  - Device PTL Addressing Convention within the Controller
- Planning Partitions
  - Figure 3–17 Partitioning a Single-Disk Unit
  - Defining a Partition
  - Guidelines for Partitioning Storagesets and Disk Drives
- Choosing Switches for Storagesets and Devices
  - Enabling Switches
  - Changing Switches
- RAIDset Switches
  - Replacement Policy
  - Reconstruction Policy
  - Membership
- Mirrorset Switches
  - Replacement Policy
  - Copy Speed
  - Read Source
- Device Switches
  - Transportability
  - Device Transfer Rate
- Initialize Switches
  - Chunk Size
  - Save Configuration
  - Destroy/Nodestroy
- Unit Switches
  - Table 3–4 Unit Switches
- Configuring Storagesets with CLI Commands
  - Adding Disk Drives
  - Configuring a Stripeset
  - Configuring a Mirrorset
  - Configuring a RAIDset
  - Configuring a Striped Mirrorset
  - Configuring a Single-Disk Unit
  - Partitioning a Storageset or Disk Drive
  - Adding a Disk Drive to the Spareset
  - Removing a Disk Drive from the Spareset
  - Enabling Autospare
  - Deleting a Storageset
  - Changing Switches for a Storageset or Device
- Configuring with the Command Console LUN
  - Enabling and Disabling the CCL
  - Finding the CCL Location
  - Multiple-Bus and Transparent Failover in SCSI-2 and SCSI-3 Modes
  - Adding Storage Units Using the CCL
- Moving Storagesets
  - Figure 3–20 Moving a Storageset from one Subsystem to Another
chapter 4
- Troubleshooting
- Maintenance Features
- Troubleshooting Checklist
- Troubleshooting Table
  - Table 4–1 Troubleshooting Table (Continued)
  - Figure 4–1 Troubleshooting: Host Cannot Access Unit
- Significant Event Reporting
- Using VTDPY to Check for Communication Problems
- Checking for Disk-Drive Problems
- Running the Controller’s Diagnostic Test
chapter 5
- Replacement Procedures
- Replacing Modules in a Single Controller Configuration
- Replacing Modules in a Dual-Redundant Controller Configuration
- Replacing the External Cache Battery Storage Building Block
- Replacing a GLM
  - Figure 5–5 Location of GLMs in Controller
- Replacing a PVA Module
  - Replacing the PVA in the Master Enclosure (ID 0)
  - Replacing the PVA in the First Expansion (ID 2) or Second Expansion (ID 3) Enclosure
- Replacing an I/O Module
  - Figure 5–6 I/O Module Locations in a BA370 Enclosure
- Replacing DIMMs
- Replacing a Fibre Cable or Hub
- Replacing a PCMCIA Card
- Replacing a Failed Storageset Member
  - Removing a Failed RAIDset or Mirrorset Member
  - Installing the New Member
- Shutting Down the Subsystem
  - Disabling and Enabling the External Cache Batteries
    - Figure 5–9 Battery Disable Switch
- Restarting the Subsystem
chapter 6
- Upgrading the Subsystem
- Upgrading Controller Software
- Upgrading Firmware on a Device
  - Figure 6–2 Upgrading Device Firmware
  - HSUTIL Messages
    - Table 6–1 HSUTIL Messages and Inquiries (Continued)
- Upgrading to a Dual-Redundant Controller Configuration
  - Installing a New Controller, Cache Module, and ECB
- Upgrading Cache Memory
  - Table 6–2 Cache Module Memory Configurations
appendix A
- System Profiles
- Device Profile
- Storageset Profile
- Enclosure Template
appendix B
- CLI Commands
- CLI Overview
ADD CONNECTIONS
ADD DISK
ADD MIRRORSET
ADD RAIDSET
ADD SPARESET
ADD STRIPESET
ADD UNIT
- Table B–2 ADD UNIT Switches for Storagesets
CLEAR_ERRORS CLI
CLEAR_ERRORS controller INVALID_CACHE
CLEAR_ERRORS device-name UNKNOWN
CLEAR_ERRORS unit-number LOST_DATA
CLEAR_ERRORS unit-number UNWRITEABLE_DATA
CONFIGURATION RESET
CONFIGURATION RESTORE
CONFIGURATION SAVE
CREATE_PARTITION
DELETE connections
DELETE container-name
DELETE FAILEDSET
DELETE SPARESET
DELETE unit-number
DESTROY_PARTITION
DIRECTORY
HELP
INITIALIZE
LOCATE
MIRROR
POWEROFF
- Table B–3 POWEROFF Switch Settings
REDUCE
RENAME
RESTART controller
RETRY_ERRORS UNWRITEABLE_DATA
RUN
SELFTEST controller
SET connection-name
SET controller
- Table B–4 SET controller Switches
SET device-name
SET EMU
- Table B–5 EMU Set Point Temperatures
SET FAILEDSET
SET FAILOVER
SET mirrorset-name
SET MULTIBUS_FAILOVER
SET NOFAILOVER
SET NOMULTIBUS_FAILOVER
SET RAIDset-name
SET unit-number
- Table B–6 SET unit-number Switches for Existing Containers
SHOW
SHUTDOWN controller
UNMIRROR
- appendix C
  - LED Codes
  - Operator Control Panel LED Codes
    - Solid OCP Patterns
      - Table C–1 Solid OCP Patterns (Continued)
    - Flashing OCP Patterns
      - Table C–2 Flashing OCP Patterns (Continued)
- appendix D
- appendix E