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