Unit Object Commands
www.3ware.com
90
If you set the storsave policy to
perform
, a confirmation message will warn
you that there could be data loss in the event of a power failure.
balance
provides more data protection than perform mode but less data
protection than protect mode, and provides better performance than protect
mode but less performance than perform mode. When storsave is set to the
balance
mode, it means:
•
When the unit becomes degraded, the write cache will not be disabled.
•
Write journaling is disabled, if no BBU is present, and is enabled, if a
BBU is present. All data flushing from controller cache will be flushed to
media if a BBU is installed and enabled. Otherwise, data will be flushed
to disk only.
•
Incoming FUA (Force Unit Access) host requests will be honored unless
a BBU is installed and enabled, in which case, they will be ignored.
quiet
is used for non-interactive mode. No confirmation is given and the
command is executed immediately. This is useful for scripting purposes.
For additional information, see “Setting the StorSave Profile for a Unit” in the
3ware SAS/SATA RAID Software User Guide, Version 9.5.1
.
Example:
//localhost> /c0/u5 set storsave=protect
Setting Command Storsave Policy for unit /c0/u5 to [protect] ...
Done.
/c
x
/u
x
migrate type=
RaidType
[disk=
p:-p
]
[group=3|4|5|6|7|8|9|10|11|12|13|14|15|16]
[stripe=
Stripe
] [noscan] [nocache] [autoverify]
This feature only applies to 9000 series controllers.
This command allows you to change the existing configuration of a unit with
type=
RaidType
. You can make three types of changes:
•
Increase the capacity
•
Change the RAID level (with the same or increased capacity)
•
Change the stripe size
The unit that results from the migration is subject to the same rules and
policies that apply when creating a new unit with the
/c
x
add
command. For
example, a valid number of disks and parameters must be specified.
The unit to be migrated must be in a normal state (not degraded, initializing,
or rebuilding) before starting the migration.
Note:
Rapid RAID Recovery is always disabled for units that are migrated.
