CLI Guide

CAUTION: Enabling Write Cache on a virtual disk generally improves performance for
applications with significant Write content (unless the application features a continuous string of
Writes. However, Write Cache does introduce some risk of data loss in the unlikely event of a
RAID controller module failure.
Syntax Applicable To Only One Virtual Disk
set (virtualDisk [“virtualDiskName”] | virtualDisk <wwID>)
addCapacity=virtualDiskCapacity
[addPhysicalDisks=(enclosureID1,slotID1
enclosureID2,slotID2 ... enclosureIDn,slotIDn)]
consistencyCheckEnabled=(TRUE | FALSE)
segmentSize=
segmentSizeValue
userLabel=virtualDiskName
preReadRedundancyCheck=(TRUE | FALSE)
Syntax Applicable To Virtual Disk Mapping
set (virtualDisk [“virtualDiskName”] | virtualDisk <wwID>)
accessVirtualDisk)
logicalUnitNumber=LUN
(host=”hostName” | hostGroup=(“hostGroupName” |
defaultGroup)
Parameters
Parameter Description
allVirtualDisks
Specifies the properties for all virtual disks in the
storage array.
virtualDisk or virtualDisks (name)
Specifies the name of the virtual disk for which to
define properties. You can enter more than one
virtual disk name if you use the virtualDisks
parameter. You must put quotation marks (" ") and
brackets ([ ]) around the virtual disk name. The
virtual disk name and quotation marks must be
inside the brackets.
virtualDisk
Specifies the WWID of the virtual disk for which
you are setting properties. You can use the WWID
instead of the virtual disk name to identify the
virtual disk. You must put angle brackets (< >)
around the WWID.
NOTE: When running this command, do not
use colon separators in the WWID.
cacheFlushModifier
The maximum amount of time that data for the
virtual disk stays in cache before the data is flushed
to physical storage. Valid values are listed in the
Notes section.
cacheWithoutBatteryEnabled
The setting to turn on or turn off caching without
batteries. To turn on caching without batteries, set
338