Avago Technologies 3ware SAS 9750-4i - Manual (Page 68)

Chapter 2. CLI Syntax Reference
60 3ware SATA+SAS RAID Controller Card CLI Guide, Version 10.0
name=string attribute allows you to name the new unit. (This feature is for
9000 series and above controllers.) The string can be up to 21 characters and
cannot contain spaces. In order to use reserved characters (‘<‘, ‘>’, ‘!’, ‘&’,
etc.) put double quotes (" ") around the name string. The name can be changed
after the unit has been created. For more information, see “/cx/ux set
name=string” on page 94 and “/cx/ux show name” on page 83.
storsave=protect|balance|perform attribute allows user to set the storsave
policy of the new unit. This feature is only for 9000 series SX/SE/SA
controllers. For more information, see “/cx/ux set
storsave=protect|balance|perform [quiet]” on page 95.
rapidrecovery=all|rebuild|disable attribute specifies the Rapid RAID
Recovery setting for the unit being created. Rapid Raid Recovery can speed
up the rebuild process, and it can speed up initialize and verify tasks that may
occur in response to an unclean system shutdown. Setting this option to all
applies this policy to both these situations. Setting it to rebuild applies it only
to rebuild tasks. If the policy is set to disable, then none of the tasks will be
sped up.
v0=n or vol=a:b:c:d may be used to divide the unit up into multiple volumes.
v0=n can be used if you only want two volumes, in which case v0=n is used
to define the size of the first volume, and the second volume will use the
remaining space. One way in which this can be useful is if you want to create
a special volume to function as a boot volume, with a separate volume for
data.
vol=a:b:c:d can be used to specify sizes for up to four volumes.
The value(s) should be positive integer(s) in units of gigabytes (GB), with a
maximum of 32 TB. If you specify a size that exceeds the size of the unit, the
volume will be left “uncarved.”
Notes: Once the rapidrecovery policy has been disabled for a unit, it cannot be
changed again. Disabling this policy is required if you want to move a unit to a
controller that has firmware earlier than 9.5.1.
There is some system overhead from setting rapidrecovery to all. If you have a
BBU, you can set rapid recovery to rebuild, as a BBU provides protection against
data loss in the event of an unclean shutdown.
This attribute is only for redundant units created on controller models 9750 and
9690SA controllers, and 9650SE controllers with the 9.5.1 firmware or later.
Rapid RAID Recovery is not supported over migration.