Chapter 2. CLI Syntax Reference
89
3ware SAS/SATA RAID Controller CLI Guide, Version 9.5.1
Once this attribute is set, the policy remains in effect unless it is changed or
disabled for the unit.
Note:
Once disabled, this setting cannot be changed for
the unit at a later time.
The quiet option is provided for scripting purposes, and is applicable only to
the
disable
option. (
/c
x
/u
x
set rapidrecovery=disable quiet
)
Example:
//localhost> /c0/u0 set rapidrecovery=all
Setting Rapid RAID Recovery policy on /c1/u0 to [all] ... Done.
/c
x
/u
x
set storsave=protect|balance|perform [quiet]
This feature only applies to 9000 series SX/SE/SA model controllers.
This command sets the storsave policy to be either
protect
,
balance,
or
perform
when the unit write cache is enabled. The default setting is
protect
.
The storsave policy adjusts several factors that control the balance between
protection and performance on a unit. There is a trade-off among the available
settings. The following description about the settings should help you to
decide which one is suitable to you and your application. You will find further
discussion of this setting in the
3ware SAS/SATA RAID Software User Guide,
Version 9.5.1
, under “About StorSave Profile Levels” on page 124.
protect
provides the maximum data protection among the controller settings.
When storsave is set to
protect
mode, it means:
•
When the unit becomes degraded, the write cache will be disabled.
•
Write journaling is enabled. All data flushing from controller cache will
be flushed to media.
•
Incoming FUA (Force Unit Access) host requests will be honored unless
a BBU is installed and enabled, in which case, they will be ignored.
perform
provides the maximum performance and least data protection of the
three controller settings. When storsave is set to
perform
mode, it means:
•
When the unit becomes degraded, the write cache will not be disabled.
•
Write journaling is disabled. All data flushing from controller cache will
be flushed to disk. If a BBU is present, this essentially disables the BBU
for this unit.
•
Incoming FUA (Force Unit Access) host requests will be honored.
Note:
When upgrading to 9.5.1, redundant units created using firmware verisons
prior to 9.5.1 are assigned a Rapid Recovery Policy of
disable
, which cannot be
changed.
