Unit Object Commands
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/cx/ux flush
This command allows you to flush the write cache on the specified unit
/ux
associated with controller
/cx
. Note that this command does not apply to spare
unit types.
/cx/ux set autoverify=on|off
This feature only applies to 9000 series controllers.
This command allows you to turn on and off the autoverify operation on a
specified unit
/cx/ux
during allocated schedule windows.
You can use the
show verify
command to display the existing schedule
windows. By default, autoverify is
off
.
Auto-verify allows the controller to run the verify function, if or when
deemed necessary, during the schedule window. If no schedule is set up and
auto-verify is enabled, then the controller can run the verify function any time
it is deemed necessary. This can include pausing the process and restarting it
before the verify finishes. For additional information, see “Setting Up a Verify
Schedule” on page 48.
/cx/ux set cache=on|off [quiet]
This command allows you to turn
on
or
off
the write cache for a specified unit
/cx/ux
. This feature is supported on both 7000/8000 and 9000 models.
By default, cache is
on
.
Write cache includes the disk drive cache and controller cache. Note that for
some configuration types, there is only disk drive cache and no controller
cache (for example, JBOD).
The following table shows the supported RAID types for caching as a
function of controller model and logical unit type. N/A (Not Applicable)
refers to cases where the given logical unit type is not supported on a
particular controller model.
The
quiet
attribute turns off interactive mode.
Table 10: Supported RAID Types for Caching
Model
R0
R1
R5
R10
R50
Single
JBOD
Spare
7K/8K
Yes
Yes
Yes
Yes
N/A
N/A
Yes
No
9K
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
