HSZ80 Array Controller ACS Version
Page
 Japan USA
Page
 Chapter
 Creating Storagesets
 CLI Commands
Vii
 Viii
 Appendix a
Page
 Figures
 Xii
 Tables
Xiii
 Xiv
 Getting Help
Compaq Website Telephone Numbers
 Precautions
Electrostatic Discharge Precautions
Component Precaution
Xvi About This Guide
 Maintenance Port Precautions
Vhdci Cable Precautions
Xvii
 Typographical Conventions
Conventions
Xviii About This Guide
 Special Notices
Xix
 Required Tools
Xx About This Guide
 Related Publications
Xxi
 Revision History
Xxii About This Guide
 General Description
 Typical Installation
2General Description
 Basic Building Block
 Basic Building Blocks List
4General Description
 Summary of HSZ80 Features
Summary of Controller Features
 6General Description
 HSZ80 Array Controller
Bridging the Gap Between the Host and Its Storage Subsystem
 8General Description
 HSZ80 Array Controller
HSZ80 Array Controller
 Description of Parts
10General Description
 Description of Parts
 Parts of the Optional Maintenance Port Cable
12General Description
 Operator Control Panel
EMU PVA
 Maintenance Port
14General Description
 Utilities and Exercisers
Fault Management Utility
Virtual Terminal Display
 Configuration Utility
Disk Inline Exerciser
Code Load and Code Patch Utility
Clone Utility
 Change Volume Serial Number Utility
Field Replacement Utility
Device Statistics Utility
 Cache Module
Cache Module Memory Configurations
18General Description
 Location of Cache Module Parts
 Caching Techniques
Read Caching
Read-Ahead Caching
20General Description
 Write-Through Caching
Write-Back Caching
 Fault-Tolerance for Write-Back Caching
Nonvolatile Memory
Cache Policies Resulting from Cache Module Failures
22General Description
 Cache Policies and Cache Module Status
 24General Description
Failover to controller B
 Resulting Cache Policies and ECB Status
 26General Description
 Through caching to its units Less than
 28General Description
 External Cache Battery
10 ECB Capacity Based on Memory Size
 11 Location of Parts
30General Description
 Charging Diagnostics
Battery Hysteresis
Page
 Configuring an HSZ80 Array Controller
 2Configuring an HSZ80 Array Controller
Configuration Rules
Introduction
 Configuring an HSZ80 Array Controller
Few Tips
 4Configuring an HSZ80 Array Controller
 Configuring a Single Controller
Location of Parts for a Single Controller Configuration
 6Configuring an HSZ80 Array Controller
 SET Thiscontroller HOSTFUNCTION= ID, Mode
 8Configuring an HSZ80 Array Controller
 Connecting a Single Controller to the Host
 10Configuring an HSZ80 Array Controller
 Location of Parts for Transparent Failover
 12Configuring an HSZ80 Array Controller
SET Failover Copy = Thiscontroller
 Restart Othercontroller Restart Thiscontroller
 14Configuring an HSZ80 Array Controller
 Connecting in Transparent Failover Mode to the Host
 16Configuring an HSZ80 Array Controller
 Location of Parts for Multiple-Bus Failover
 18Configuring an HSZ80 Array Controller
SET Multibusfailover Copy = Thiscontroller
 Restart Othercontroller Restart Thiscontroller
 20Configuring an HSZ80 Array Controller
 Connecting in Multiple-Bus Failover Mode to the Host
 Optional Steps
22Configuring an HSZ80 Array Controller
Change the CLI prompt
 Set the maximum data-transfer rate
 24Configuring an HSZ80 Array Controller
UPS Support
 Setting the PVA Module ID Switch
 26Configuring an HSZ80 Array Controller
Establishing a Local Connection to Controller
 PC/Terminal to Maintenance Port Connection
 28Configuring an HSZ80 Array Controller
This Controller and Other Controller
 Selecting a Failover Mode
Using Transparent Failover Mode
 Using Multiple-Bus Failover Mode
30Configuring an HSZ80 Array Controller
 Selecting a Cache Mode
Enabling Mirrored Write-Back Cache
 Fault-Tolerance
32Configuring an HSZ80 Array Controller
 Setting Scsi Target ID Numbers
Host Scsi Bus
 34Configuring an HSZ80 Array Controller
Device Scsi Bus
 Using Preferred ID Numbers
Page
 Creating Storagesets
 2Creating Storagesets
 Disk drives
 Planning and Configuring Storagesets
4Creating Storagesets
 Creating a Storageset and Device Profile
 Creating Storagesets
Type of Storageset
 Determining Storage Requirements
 Choosing a Storageset Type
A Comparison of Different Kinds of Storagesets
8Creating Storagesets
For Disk Array Technology
 Using Stripesets to Increase I/O Performance
 Considerations for Planning a Stripeset
10Creating Storagesets
 Distribute Members across Ports
 Using Mirrorsets to Ensure Availability
12Creating Storagesets
 Considerations for Planning a Mirrorset
Mirrorsets Maintain Two Copies of the Same Data
 14Creating Storagesets
First Mirrorset Members on Different Buses
 Using RAIDsets to Increase Performance Availability
 Considerations for Planning a RAIDset
16Creating Storagesets
Page
 18Creating Storagesets
Striping and Mirroring in the Same Storageset
 Considerations for Planning a Striped Mirrorset
 Cloning Data for Backup
20Creating Storagesets
 Clone Steps for Duplicating Unit Members
 Example
22Creating Storagesets
 Use available device DISK20400size=832317 for member
 24Creating Storagesets
DISK20000size=832317 y,n y ? y
 Backing Up Your Subsystem Configuration
Saving Subsystem Configuration Information to a Single Disk
 Saving Subsystem Configuration Information to a Storageset
26Creating Storagesets
 Displaying the Status of the Save Configuration Feature
Controller
 28Creating Storagesets
Cache
 Notransportable
 Restoring Node IDs
Node IDs
30Creating Storagesets
Page
 Assigning Unit Numbers for Host Access to Storagesets
32Creating Storagesets
 Unit Numbering Examples
LUN
 Creating a Storageset Map
34Creating Storagesets
 10. Storageset Map
 36Creating Storagesets
Device PTL Addressing Convention within Controller
Locate devicename
 11. PTL Naming Convention
 38Creating Storagesets
Device port numbers Target Numbers
 13. Locating Devices using PTLs
 Defining a Partition
Planning Partitions
40Creating Storagesets
 Guidelines for Partitioning Storagesets Disk Drives
 Choosing Switches for Storagesets Devices
Enabling Switches
Changing Switches
42Creating Storagesets
 Replacement Policy
RAIDset Switches
Reconstruction Policy
 Membership
44Creating Storagesets
 Mirrorset Switches
 Read Source
Copy Speed
46Creating Storagesets
 Disaster Tolerance Support
 Transportability
Device Switches
48Creating Storagesets
 Device Transfer Rate
 50Creating Storagesets
Local/Remote
Dtsupport
 Initialize Switches
Chunk Size
 Increasing the Request Rate
52Creating Storagesets
 Increasing the Data Transfer Rate
16. Chunk Size Smaller than the Request Size
 Increasing Sequential Write Performance
Maximum Chunk Size for RAIDsets
Maximum Chunk Sizes for a RAIDset
54Creating Storagesets
 Save Configuration
Considerations for Saving the Configuration
 56Creating Storagesets
 Destroy/Nodestroy
 Unit Switches for Storagesets
Unit Switches
58Creating Storagesets
 Configuring Storagesets
 2Configuring Storagesets
ADD Disk DISKnnnn ptl-location switchvalue
Adding Disk Drives
Adding One Disk Drive at a Time
 Configuring a Stripeset
 Configuring a Mirrorset
4Configuring Storagesets
ADD Mirrorset mirrorset-name DISKnnnn DISKnnnn switch
Initialize mirrorset-name switch
 ADD Unit unit-number mirrorset-name switch
Show mirrorset-name
 Configuring a RAIDset
6Configuring Storagesets
ADD Raidset RAIDset-name DISKnnnn DISKnnnn DISKnnnn switch
Initialize RAIDset-name switch
 Show RAIDset-name
Configuring a Striped Mirrorset
ADD Stripeset stripeset-name mirrorset1 mirrorset2
 8Configuring Storagesets
 Configuring a Single-Disk Unit
ADD Unit unit-number DISKnnnn switchvalue
 10Configuring Storagesets
Partitioning a Storageset or Disk Drive
 Initialize storageset-name switch
Show storageset-name
 12Configuring Storagesets
 Adding a Disk Drive to the Spareset
 Removing a Disk Drive from the Spareset
14Configuring Storagesets
 Enabling Autospare
 16Configuring Storagesets
Deleting a Storageset
Delete unit-number
Delete storageset-name
 Changing Switches for a Storageset or Device
Displaying the Current Switches
Changing RAIDset and Mirrorset Switches
Changing Device Switches
 Changing Unit Switches
Changing Initialize Switches
18Configuring Storagesets
 Configuring with the Command Console LUN
Enabling and Disabling the CCL
 SCSI-2 Mode
SCSI-3 Mode
20Configuring Storagesets
Finding the CCL Location
 Troubleshooting with the CCL
Adding Storage Units with the CCL
 22Configuring Storagesets
 Configuring Units with Multiple Hosts
Host Modes
 24Configuring Storagesets
IBM AIX
 Setting Host Modes
 26Configuring Storagesets
Transparent Failover Mode
Designating the Port
 Accessing Units on a Given Port
 28Configuring Storagesets
Designating the Host Scsi ID Number
 Scsi ID
 30Configuring Storagesets
Designating the Port and Designating the Host Scsi ID Number
 SET this PORT1ID = SET this PORT2ID =
 Multiple-Bus Failover Mode
32Configuring Storagesets
 Assigning Units through Multiple Host Adapters
 34Configuring Storagesets
 Moving Storagesets
Moving a Storageset from one Subsystem to Another
 36Configuring Storagesets
Locate disk-name
Delete disk-name
ADD Disk disk-name PTL-location
 ADD storageset-name disk-name disk-name
ADD Unit unit-number storageset-name
 38Configuring Storagesets
Move disk drives to their new location
 CLI Commands
 Using the CLI
Command Overview
2CLI Commands
CLI Overview
 Getting Help
Entering CLI Commands
SET Thiscontroller ?
 4CLI Commands
Recall and Edit Command Keys
Unit Naming
 Unit Number
 Command Syntax
6CLI Commands
Command parameter Switches
Changing the CLI Prompt
 Syntax
ADD Disk
Parameters
 Switches
8CLI Commands
Transportable
Remote
 TRANSFERRATEREQUESTED=20MHZ Default
TRANSFERRATEREQUESTED=ASYNCHRONOUS
TRANSFERRATEREQUESTED=10MHZ TRANSFERRATEREQUESTED=5MHZ
ADD Disk DISK40200 4 2 0 Transportable
 10CLI Commands
See also
Initialize DISK20000 2 0 ADD Unit D199 DISK20000
ADD Disk DISK200 2 0 0 Remote
 ADD Mirrorset
COPY=FAST
 12CLI Commands
POLICY=BESTPERFORMANCE Default
Dtsupport Nodtsupport
POLICY=BESTFIT
 READSOURCE=disk-name READSOURCE=LEASTBUSY Default
READSOURCE=ROUNDROBIN
 ADD Mirrorset MIRR1 DISK10000 DISK20100 DISK30200
14CLI Commands
Initialize MIRR1 ADD Unit D104 MIRR1
 Initialize Mirror Reduce
ADD Disk ADD Unit
Show Mirrorsets Show Storagesets Unmirror
 16CLI Commands
ADD Passthrough
Parameter
ADD Passthrough passthrough-name scsi-port-target-lun
 ADD Passthrough TAPE20300 2 3 ADD Unit P100 TAPE20300
 Show Devices Show Passthrough
18CLI Commands
Show passthrough-name
 ADD Raidset
RAIDset-name
 RECONSTRUCT=NORMAL Default
20CLI Commands
RECONSTRUCT=FAST
 Noreduced Default
Reduced
ADD Raidset RAID9 DISK10000 DISK20100 DISK30200
Initialize RAID8
 22CLI Commands
ADD Unit D70 RAID8
ADD Raidset RAID6 DISK10300 DISK20400 DISK30200 Reduced
SET Raidset Show Raidset
 ADD Spareset
ADD Spareset DISK20200 ADD Spareset DISK30300
Delete Spareset Show Spareset Show Storagesets
Disk-name
 24CLI Commands
ADD Stripeset
Stripeset-name
Container-name1 container-name2 container-nameN
 ADD Stripeset STRIPE1 DISK10000 DISK20100 DISK30200
Initialize STRIPE1 ADD Unit D103 STRIPE1
 ADD Unit ADD Mirrorset
26CLI Commands
Initialize Show Storageset Show Stripeset
 ADD Unit unit-number container-name
ADD Unit
Unit-number
 ADD Unit Switches for Storagesets
28CLI Commands
Page
 30CLI Commands
MAXIMUMCACHEDTRANSFER=32 Default MAXIMUMCACHEDTRANSFER=n
Nopreferredpath Default
PARTITION=partitionnumber
 Readcache Default
Readaheadcache Default
Noreadcache
Noreadaheadcache
 32CLI Commands
Norun
Nowriteprotect
Nowritebackcache
 ADD Unit D102 DISK10000 PREFERREDPATH=THISCONTROLLER
 34CLI Commands
Createpartition
Delete unit-number SET unit-number
Show Units
 Clearerrors CLI
Clearerrors CLI
Clearerrors CLI
Clearerrors Clearerrors Clearerrors Clearerrors
 36CLI Commands
Clearerrors controller Invalidcache
Controller
 Examples
 Clearerrors device-nameUNKNOWN
38CLI Commands
Clearerrors DISK30000 Unknown
Device-name
 See also
 40CLI Commands
Clearerrors unit-numberLOSTDATA
Clearerrors D103 Lostdata
 See also
 Clearerrors unit-number
42CLI Commands
Clearerrors D103 Unwriteabledata
Unwriteabledata
 See also
 Configuration Reset
44CLI Commands
Configuration Reset
Configuration Restore Configuration Save Initialize
 Configuration Restore
Configuration Restore
 46CLI Commands
Configuration Reset Configuration Save Initialize
 Configuration Save
Configuration Reset Configuration Restore Initialize
 48CLI Commands
Createpartition
Createpartition container-name SIZE=percent
SIZE=percent
 CAPACITY= CYLINDERS= HEADS= SECTORSPERTRACK=
 50CLI Commands
Destroy Partition Show
 Delete DISK10000
Delete STRIPE1
 Delete Failedset Delete Spareset Unmirror
52CLI Commands
Delete RAID9
 Delete Failedset DISK20200
Delete Failedset
SET Failedset Show Failedset
 Delete Spareset
54CLI Commands
Delete Spareset DISK20300
ADD Spareset Show Spareset
 Delete unit-number
Delete D103
 ADD Unit Clearerrors Lostdata
56CLI Commands
Delete Failedsets Delete Sparesets Destroypartition
 Destroypartition container-name PARTITION=partition-number
Destroypartition
Partition-number
 58CLI Commands
Delete D102 Destroypartition RAID9 PARTITION=2
 Directory
Directory
RUN
 60CLI Commands
Help
Help
Help
 SET ?
Your options are
 Initialize
62CLI Commands
Initialize container-name
 CHUNKSIZE=DEFAULT Default CHUNKSIZE=n
 64CLI Commands
Destroy Default
Saveconfiguration
Nosaveconfiguration Default
 Initialize DISK10000 Saveconfiguration
Show Devices Full
 66CLI Commands
Reduce DISK40400 Initialize DISK40400 Nodestroy
 Cancel
Locate
Locate parameter
ALL
 68CLI Commands
Disks
PTL SCSI-location
Units
 Locate D102
Locate DISK10000 Locate Cancel
Locate Disks
 Mirror
70CLI Commands
Mirror disk-name mirrorset-name
 Nopolicy Default
POLICY=BESTFIT POLICY=BESTPERFORMANCE
 72CLI Commands
 ADD Mirrorset Reduce Show Mirrorsets Unmirror
 Poweroff
74CLI Commands
Battery on
Overridebadflush
 Poweroff Switch Settings
SECONDS=nn
 76CLI Commands
Poweroff SECONDS=10
 Reduce
 Reduce disk-name1 disk-name2 disk-name3
78CLI Commands
Disk-name1 disk-name2 disk-name3
 Show STRIPE1
Show Mirrorsets
 ADD Mirrorset RUN Clone Show Mirrorset
80CLI Commands
SET mirrorset-name
 Rename
Rename old-container-name new-container-name
Old-container-name
New-container-name
 82CLI Commands
Rename DISK10000 Mydisk Show Disks
 Noignoreerrors Default
Ignoreerrors
Restart controller
 84CLI Commands
Immediateshutdown
Restart Thiscontroller
Restart Othercontroller
 Retryerrors unit-number
Retryerrors D103 Unwriteabledata
 86CLI Commands
RUN
RUN program-name
Program-name
Page
 88CLI Commands
RUN Dilx
 Selftest controller
Selftest controller
 90CLI Commands
Selftest Othercontroller Ignoreerrors
Selftest Thiscontroller
Restart controller Shutdown controller
 SET controller
SET controller Switches
Thiscontroller
 92CLI Commands
 CACHEFLUSHTIMER=n CACHEFLUSHTIMER=10 Default
Nocacheups Default
Allocationclass
Cacheups
 94CLI Commands
Commandconsolelun
Nocommandconsolelun Default
HOSTFUNCTION=mode HOSTFUNCTION=ID,mode
 NODEID=nnnn-nnnn-nnnn-nnnn checksum
 96CLI Commands
NOPORT1ID
NOPORT2ID
Mirroredcache
Page
 NOPORT1PREFERREDID
98CLI Commands
NOPORT2PREFERREDID
 SCSIVERSION=SCSI-2 Default
TERMINALSPEED=baudrate TERMINALSPEED=9600 Default
SCSIVERSION=SCSI-3
TERMINALPARITY=ODD TERMINALPARITY=EVEN
 100CLI Commands
Maximum SCSI-Bus Lengths for Given Data Transfer Rate
 101
SET Othercontroller PROMPT=CONTROLLER B
SET Thiscontroller PORT1ID=2,5
Show Thiscontroller Show Othercontroller
 102CLI Commands
SET device-name
 103
 104CLI Commands
SET DISK20000 TRANSFERRATEREQUESTED=5MHZ
SET DISK10300 Transportable
SET DISK10300 Remote
 105
SET EMU
SET EMU
 EMU Set Point Temperatures
106CLI Commands
FANSPEED=AUTOMATIC Default
FANSPEED=HIGH
 SET EMU SENSOR2SETPOINT=34
107
SET EMU FANSPEED=HIGH
 108CLI Commands
SET Failedset
SET Failedset
Autospare Noautospare
 109
SET DISK10000 Transportable
Init DISK10000
SET Failedset Autospare
 SET Failover
110CLI Commands
Thiscontroller Othercontroller
 SET Failover COPY=THISCONTROLLER
111
SET Multibusfailover SET Nofailover SET Nomultibusfailover
 112CLI Commands
SET mirrorset-name
 113
MEMBERSHIP=number-of-members
 REMOVE=disk-name
114CLI Commands
REPLACE=disk-name
 115
 116CLI Commands
SET MIRR1 POLICY=BESTFIT
 117
SET MIRR1 REMOVE=DISK30000
SET MIRR1 REPLACE=DISK30200
ADD Mirrorset Reduce Show Mirrorset Unmirror
 118CLI Commands
SET Multibusfailover
 119
SET Failover SET Nofailover SET Nomultibusfailover
 120CLI Commands
Nodestroyunflushabledata Default
SET Nofailover
Destroyunflushabledata
 SET Nofailover
121
SET Failover SET Multibusfailover SET Nomultibusfailover
 122CLI Commands
SET Nomultibusfailover
 SET Nomultibusfailover Destroyunflushabledata
123
SET Failover SET Multibusfailover SET Nofailover
 124CLI Commands
SET RAIDset-name
 125
 SET RAID9 POLICY=BESTFIT
126CLI Commands
SET RAID9 REMOVE=DISK10000
 SET RAID9 REPLACE=DISK20100
127
ADD Raidset Show Raidsets
 128CLI Commands
SET unit-number
 129
 130CLI Commands
 MAXIMUMCACHEDTRANSFER=n MAXIMUMCACHEDTRANSFER=32 Default
131
 132CLI Commands
ERRORMODE=NORMAL ERRORMODE=FAILSAFE
 133
 134CLI Commands
 135
SET D102 Writeprotect Noreadcache
 136CLI Commands
Show
Show controller Show device-name Show device-type
Show EMU
 137
Device-type
EMU
Storageset-name
 138CLI Commands
Full
 139
 Show MIRR1
140CLI Commands
Show Mirrorset Full
 141
Show Thiscontroller Full
 142CLI Commands
Show EMU
 Shutdown controller
143
 Shutdown Thiscontroller
144CLI Commands
Restart controller Selftest controller
 145
Unmirror
Unmirror DISK10300
 146CLI Commands
ADD Mirrorset Reduce RUN Clone
 System Profiles
 Device Profile
2System Profiles
 Storageset Profile
Reduced Membership
 Enclosure Template
4System Profiles
 Controller Specifications
 Physical and Electrical Specifications for Controller
2Controller Specifications
 Environmental Specifications
Optimum Operating Environmental Specifications
 Table B-4 Maximum Nonoperating Environmental Specifications
Table B-3 Maximum Operating Environmental Specifications
4Controller Specifications
 Glossary
 GL-2Glossary
Bit
 CSR
 GL-4Glossary
Data striping
 Dual-simplex
See ECB
 GL-6Glossary
FD Scsi
 IBR
 GL-8Glossary
Operation
 Mist
 GL-10Glossary
Normal member
 PCM
 GL-12Glossary
PTL
 RAIDset
 GL-14Glossary
RFI
 SCSI-P cable
 GL-16Glossary
Storage subsystem
 GL-17
Synchronous
 GL-18Glossary
Vhdci
 GL-19
Page
 ADD Passthrough passthrough-name scsi-port-target-lun,5-16
ADD Raidset RAIDset-name container- nameN
ADD Stripeset stripeset-name container- nameN
ADD Unit unit-number container-name,5-27Adding
 2Index
Batteryoff Poweroff Batteryon Poweroff
AUTOSPARE, 4-15SET Failedset
 Cacheups
Capacity CREATEPARTITION, 5-49INITIALIZE
Chunksize Initialize
Lostdata
 4Index
SET MULTIBUSFAILOVER, 5-118SET Nofailover
Page
 Copy
6Index
Cylinders CREATEPARTITION, 5-49INITIALIZE
 Destroyunflushabledata SET Nofailover SET Nomultibusfailover
 Disableaccesspath ADD Unit
8Index
Dilx
Disks
 Errormode
Enableaccesspath ADD Unit
ECB
 Index
 Saveconfiguration
Nosaveconfiguration
ADD Disk
 PTL SCSI-location,5-68unit-number,5-68UNITS
Maximumcachedtransfer ADD Unit
Membership
SET mirrorset-name,5-113Membership
 Nooverridebadflush Poweroff Noautospare SET Failedset
Nodeid
INVALIDCACHE, 5-36NODTSUPPORT
Nopolicy ADD RAIDSET, 5-20NOPORT1ID
 Overridebadflush Poweroff
NOPORT2TRANSFERRATEREQUEST ED
Nopreferredpath
Noreadcache
 PORT1ID
Show device-type,5-137Path
PORT2ID
 Prompt
Preferredpath
SET controller, 5-98Protocol
 SET mirrorset-name,5-114
SET RAIDset-name,5-125
Rename old-container-name new-container
SET mirrorset-name,5-116
 RUN program name
 PORT2PREFERREDID PORT2TRANSFERRATEREQUESTE D
PORT1PREFERREDID PORT1TRANSFERRATEREQUESTE D
WRITEPROTECT, 5-133WRITEBACKCACHE
 Passthrough
Show storageset-name,5-137SHOW storageset-type,5-137
 Size Createpartition
 TRANSFERRATEREQUESTED, 3-49TRANSPORTABLE
 SET controller, 5-99Tip, defined, xix Tools, xx Topology
Time
TRANSFERRATEREQUESTED, 3-49ADD Disk
 Vtdpy
 Writeprotect