Index

&space
Dual–Interface/Dual–Processor Configuration
Restarting the Challenge RAID Storage System
Dual–Bus/Dual–Initiator Configuration

agent
Getting Device Names With getagent
Determining Firmware Revision Level and RAID-3 Type
Using the RAID Graphical User Interface
getagent
communication with firmware
Using the RAID Graphical User Interface
restarting
Allocating Memory for RAID-3 LUNs
Assigning Memory for RAID-3 LUNs
revision number
getagent
Getting Device Names With getagent
getagent
Getting Device Names With getagent
fast RAID-3
RAID-3: Parallel Access Array
Firmware Revision Level-Dependent Differences for RAID-3 Capabilities and Requirements
stopping
Allocating Memory for RAID-3 LUNs
Assigning Memory for RAID-3 LUNs

alarm
message window
Using Alarm Settings
settings
Using Alarm Settings

auto-assign
Using RAID5GUI to Change LUN Ownership
Creating LUNs
Creating LUNs

automatic polling
Using RAID5GUI Automatic Polling

basic configuration
Basic Configuration

battery backup unit
Battery Backup Unit
replacing
Battery Backup Unit
status
Getting General System Information
Getting Information About Other Components

BBU. See battery backup unit
Battery Backup Unit

bind
bind
Planning the Bind
legal configurations
bind
Binding Disks
planning
Planning the Bind

caching
Caching
Challenge RAID Storage-Control Processor
Enhanced Performance: Storage System Caching
changing parameters
Changing Unit Caching Parameters
disabling
Creating LUNs
Changing Caching Parameters Using RAID5GUI
setcache
Setting Cache Parameters Using the Command-Line Interface
Changing Unit Caching Parameters
enabling
Creating LUNs
Changing Unit Caching Parameters
Setting Cache Parameters Using the Command-Line Interface
setcache
failure
Viewing Cache Statistics
flag in bind
bind
Binding Disks
flag in chglun
chglun
memory partition
Specifying Memory Partitions
page size
setcache
Setting Cache Parameters Using the Command-Line Interface
Setting Cache Parameters Using the Command-Line Interface
Selecting Read and Write Cache Parameters
prefetch. See prefetch parameters
Changing LUN Parameters Using RAID5GUI
reads and writes
Using the LUN Information Window
requirements
Caching
setting parameters
Creating LUNs
Setting Cache Parameters
size
Setting Cache Parameters Using the Command-Line Interface
Setting Cache Parameters Using the Command-Line Interface
setcache
statistics
Viewing Cache Statistics
upgrading for
Upgrading Challenge RAID to Support Caching

CHALLENGE server system
About This Guide
Challenge RAID Storage Systems

chassis
Storage System Chassis
assemblies, on one SCSI bus
Challenge RAID Storage Systems
front view
Challenge RAID Storage Systems
icon
Getting Information About System Components

Chassis Status window
Getting Information About System Components

chglun
chglun

clearlog
Displaying the Challenge RAID Unsolicited Event Log
clearlog

clearstats
clearstats

CLI. See command-line interface
Using the Challenge RAID Command-Line Interface

client and server, RAID5GUI
Using the RAID Graphical User Interface

command-line interface
Using the Challenge RAID Command-Line Interface
The raidcli Command-Line Interface

component
Storage System Components
button color
Getting General System Information
getting information
Getting Information About Other Components
Getting Information About System Components
Getting General System Information
identifying failed
Identifying Failed System Components

configuration
disk
Configuring Disks
storage system
Storage System Configurations
basic
Basic Configuration
dual-bus/dual-initiator
Dual–Bus/Dual–Initiator Configuration
dual-interface/dual-processor
Dual–Interface/Dual–Processor Configuration
features
Storage System Configurations
split-bus
Split-Bus Configuration

conventions
Conventions

data
rebuilding
Data Reconstruction and Rebuilding After Disk Module Failure
reconstruction
Data Reconstruction and Rebuilding After Disk Module Failure
redundancy
Data Reconstruction and Rebuilding After Disk Module Failure
RAID-3
RAID-3: Parallel Access Array
RAID-5
RAID-5: Individual Access Array

device
The raidcli Command-Line Interface
Binding Disks
Using the raidcli Command
name
Dual Interfaces, Load Balancing, and Device Names
node, creating
Creating Device Nodes and Binding the Disks

disk module
Disk Modules
A0, A3, B0, C0, D0, E0, moving
Upgrading Challenge RAID to Support Caching
RAID Levels
RAID Levels
A0, B0, C0, D0, E0
required for caching
Caching
A0, B0, C0, D0, E0
failed
Identifying and Verifying a Failed Disk Module
failed, and caching
Viewing Cache Statistics
removing
Ordering Add-On Disk Module Arrays
add-on array
Installing an Add-On Disk Module
installing
Installing New Disk Modules
installing:order
Installing New Disk Modules
ordering
Ordering Add-On Disk Module Arrays
busy light
Disk Modules
button
Disk Module Buttons
color
Getting General System Information
Disk Module Errors window
Disk Module Buttons
Disk Module Information window
Disk Module Buttons
Disk Module Statistics window
Disk Module Buttons
fault light
Disk Modules
getting information
Getting Information About Disk Modules
Getting Information About Disk Modules
ID
Storage System Chassis
displaying in RAID5GUI
Getting General System Information
identifying failed
Identifying and Verifying a Failed Disk Module
installing replacement
Installing a Replacement Disk Module
location
Identifying and Verifying a Failed Disk Module
Getting Information About Disk Modules
Installing New Disk Modules
Storage System Chassis
maintaining
Maintaining Disk Modules
moving
Moving Disk Modules
order
Storage System Chassis
ordering replacement
Ordering Replacement Disk Modules
reads and writes
Disk Module Buttons
errors
Disk Module Buttons
ready light
Disk Modules
removing failed
Removing a Failed Disk Module
replacing
Setting Up the Workplace for Replacing or Installing Disk Modules
RAID Levels
status lights
Disk Modules
Identifying and Verifying a Failed Disk Module
swapping
RAID Levels
unbinding
Unbinding LUNs in a New Storage System
Unbinding the Disk
Unbinding LUNs in a New Challenge RAID Storage System

disk striping. See striping
Enhanced Performance: Disk Striping

dual-bus/dual-initiator configuration
Dual–Bus/Dual–Initiator Configuration
Dual Interfaces, Load Balancing, and Device Names

dual-interface/dual-processor configuration
Dual Interfaces, Load Balancing, and Device Names
Dual–Interface/Dual–Processor Configuration

electrostatic discharge damage (ESD), avoiding
Setting Up the Workplace for Replacing or Installing Disk Modules

environment variable
The raidcli Command-Line Interface
Starting RAID5GUI

Equipment View
Getting General System Information

error codes
getlog
Storage-Control Processor Event-Log Error Codes

event log
getlog
Displaying the Challenge RAID Unsolicited Event Log
clearing
Displaying the Challenge RAID Unsolicited Event Log
error codes
Storage-Control Processor Event-Log Error Codes
See also SP event log
Viewing the SP Event Log

failover
disable Auto Assign
Creating LUNs
Creating LUNs
RAID-3 memory requirement
Assigning Memory for RAID-3 LUNs
RAID-3 and Failover
Determining RAID Levels
Firmware Revision Level-Dependent Differences for RAID-3 Capabilities and Requirements
Allocating Memory for RAID-3 LUNs
Allocating Memory for RAID-3 LUNs
Allocating Memory for RAID-3 LUNs
See also high availability
Firmware Revision Level-Dependent Differences for RAID-3 Capabilities and Requirements
Determining RAID Levels

fan module
closing
Restarting the Challenge RAID Storage System
opening
Restarting the Challenge RAID Storage System
replacing
Fan Module
status
Getting Information About Other Components
Getting General System Information

field-replaceable unit. See component
Identifying Failed System Components

filesystem capacity and RAID
Filesystem Capacity Considerations for RAID

firmware
Viewing SP Status Information
Getting Device Names With getagent
getagent
getagent
Getting Device Names With getagent
Getting Device Names With getagent
and system buffer space required
Specifying Memory Partitions
communication with agent
Using the RAID Graphical User Interface
for fast RAID-3
Planning a RAID-3 Bind
RAID levels supported
About This Guide
reboot
Allocating Memory for RAID-3 LUNs
Assigning Memory for RAID-3 LUNs

FLARE code. See firmware
Getting Device Names With getagent

getagent
getagent
Getting Device Names With getagent

getcache
Viewing Cache Statistics
getcache

getcontrol
getcontrol
Getting General System Information

getcrus
Getting Information About Other Components
getcrus

getdisk
getdisk
Getting Information About Disk Modules

getlog
Displaying the Challenge RAID Unsolicited Event Log
getlog

getlun
getlun
Getting LUN Information Using the Command-Line Interface

getsp
Allocating Memory for RAID-3 LUNs
getsp

graphical user interface. See RAID5GUI
Using the RAID Graphical User Interface

grouping disk modules. See bind
Binding Disks

high availability
Binding Disks
bind
Creating LUNs
RAID-3: Parallel Access Array
Creating LUNs
See also failover
Determining RAID Levels
Firmware Revision Level-Dependent Differences for RAID-3 Capabilities and Requirements

.hosts file
Starting RAID5GUI

hot spare
RAID Hot Spare
binding
Binding Disks
bind

hotline
Identifying Failed System Components
Ordering Replacement Disk Modules
Ordering Add-On Disk Module Arrays
Identifying and Verifying a Failed Disk Module

idle
delay time
chglun
threshold
chglun

individual disk unit
Individual Disk Unit
binding
Binding Disks

IRIX version
About This Guide

Licensed Internal Code. Seefirmware
Viewing SP Status Information

log. See event log, SP
Displaying the Challenge RAID Unsolicited Event Log

logical unit number
Binding Disks Into RAID Units
See also LUN
Binding Disks Into RAID Units

LUN
Binding Disks Into RAID Units
button
Using the Summary View for LUN Information
changing configuration
Changing LUN Configuration
changing parameters
Changing LUN Parameters
getting information
Getting LUN Information Using the Command-Line Interface
maximum number
Creating LUNs
Binding Disks
number, assigning
Binding Disks
Creating LUNs
ownership
Creating LUNs
Creating LUNs
load balancing
Dual Interfaces, Load Balancing, and Device Names
ownership<changing
Transferring Control of a LUN
See also bind
Unbinding LUNs in a New Storage System
transferring control
Transferring Control of a LUN

model number
disk module
Disk Modules
SP
Viewing Settings
Determining Firmware Revision Level and RAID-3 Type
getsp

multiple CHALLENGE RAID storage systems
Challenge RAID Storage Systems

operation
Operating the Storage System

parity data
RAID-5: Individual Access Array
Data Reconstruction and Rebuilding After Disk Module Failure

polling
automatic
Using RAID5GUI Automatic Polling
manual
Using RAID5GUI Automatic Polling

power supply
Power Supply
replacing
Power Supply

power supply status
Getting Information About Other Components
Getting General System Information

PowerPC-based SP
Specifying Memory Partitions

prefetch parameters
Changing LUN Parameters Using RAID5GUI

PROM revision
Viewing SP Status Information
Determining Firmware Revision Level and RAID-3 Type

RAID
and filesystem capacity
Filesystem Capacity Considerations for RAID
defined
Features of the Challenge RAID Storage System
level 0
RAID-0 Group: Nonredundant Array
striping
RAID-0 Group: Nonredundant Array
level 1
RAID-1: Mirrored Pair
level 1_0
RAID-1_0 Group: Mirrored RAID-0 Group
disk module order
bind
Binding Disks
Creating LUNs
striping
RAID-1_0 Group: Mirrored RAID-0 Group
level 3
RAID-3: Parallel Access Array
binding
Allocating Memory for RAID-3 LUNs
Assigning Memory for RAID-3 LUNs
fast
Firmware Revision Level-Dependent Differences for RAID-3 Capabilities and Requirements
RAID-3: Parallel Access Array
planning
Planning a RAID-3 Bind
setting memory
Setting Cache Parameters Using the Command-Line Interface
setcache
striping
bind
RAID-3: Parallel Access Array
Binding Disks
level 5
RAID-5: Individual Access Array
compared with individual disk
RAID-3: Parallel Access Array
compared with RAID-0
RAID-3: Parallel Access Array
compared with RAID-1
RAID-3: Parallel Access Array
compared with RAID-3
RAID-3: Parallel Access Array
striping
RAID-5: Individual Access Array
levels
binding
Binding Disks
bind
planning
Determining RAID Levels
study
Features of the Challenge RAID Storage System

RAID5GUI
Using the RAID Graphical User Interface
client and server
Using the RAID Graphical User Interface
exiting
Exiting RAID5GUI
starting
Starting RAID5GUI

RAID_ARRAY_HOSTS environment variable
Starting RAID5GUI

RaidAgentDevice environment variable
The raidcli Command-Line Interface

raidcli
Using the raidcli Command
The raidcli Command-Line Interface
parameters summarized
The raidcli Command-Line Interface
syntax
The raidcli Command-Line Interface

Ready state
Disk Module Buttons

Rebuild state
Disk Module Buttons

rebuild time
bind
Creating LUNs
Installing a Replacement Disk Module
Creating LUNs
Changing LUN Parameters Using RAID5GUI
Using the LUN Information Window
bind
Binding Disks
chglun
chglun

Removed state
Disk Module Buttons

restarting
agent after changing RAID-3 memory
Allocating Memory for RAID-3 LUNs
Assigning Memory for RAID-3 LUNs
system
Restarting the Challenge RAID Storage System

SCSI-2
bus
RAID-5: Individual Access Array
and disk modules
Storage System Chassis
length limit
Challenge RAID Storage Systems
interface
SCSI–2 Interface

service light
Checking Challenge RAID Storage System Status
button
Getting General System Information
Chassis Status window
Getting Information About System Components

setcache
Setting Cache Parameters Using the Command-Line Interface
Changing Caching Parameters Using the Command-Line Interface
setcache

setstats
setstats

shutting down system
Shutting Down the Challenge RAID Storage System

Silicon Graphics hotline
Ordering Add-On Disk Module Arrays
Identifying Failed System Components
Identifying and Verifying a Failed Disk Module
Ordering Replacement Disk Modules

SP
event log
Viewing the SP Event Log
PowerPC-based
Specifying Memory Partitions
See also storage-control processor
Getting Information About Other Components
SP Summary window
Viewing SP Status Information
status information
Viewing SP Status Information

SP Comm Channel field
Viewing SP Status Information

specifications
Technical Specifications

split-bus configuration
Dual Interfaces, Load Balancing, and Device Names
Split-Bus Configuration

statistics
log
Enabling and Disabling the Statistics Log
LUN, window
Getting LUN Read/Write Statistics

status
checking
Checking Challenge RAID Storage System Status
light
Checking Challenge RAID Storage System Status

storage-control processor
Challenge RAID Storage-Control Processor
and transferring LUN control
Transferring Control of a LUN
failed, and caching
Viewing Cache Statistics
replacing
Storage-Control Processor
See also SP
Getting Information About Other Components
status
Getting General System Information
Getting Information About Other Components

striping
Enhanced Performance: Disk Striping
count
bind
Binding Disks
default size
Enhanced Performance: Disk Striping
RAID-0
RAID-0 Group: Nonredundant Array
RAID-1_0
RAID-1_0 Group: Mirrored RAID-0 Group
RAID-3
RAID-3: Parallel Access Array
bind
Binding Disks
RAID-5
RAID-5: Individual Access Array
size
Creating LUNs
Creating LUNs
Using the LUN Information Window
Binding Disks
bind
RAID-3
bind
Binding Disks

Summary View
Getting Information About Disk Modules

system information
Getting General System Information
Getting General System Information

unbind
unbind
Unbinding LUNs in a New Challenge RAID Storage System
in new system
Unbinding LUNs in a New Challenge RAID Storage System
Unbinding LUNs in a New Storage System

Unbound state
Disk Module Buttons

VSC. See power supply
Getting Information About Other Components
Power Supply