Compaq HSZ80 manual 32CLI Commands, Norun, Nowriteprotect, Nowritebackcache

5–32CLI Commands

RUN (Default)

NORUN

Controls the unit’s availability to the host.

Specify RUN to make a unit available to the host.

Specify NORUN to make a unit unavailable to the host and to cause any data in cache to be flushed to one or more drives. NORUN spins down all the disks used in the unit. The drives making up the unit spin down after the data has been completely flushed.

NOTE: Do not specify the RUN and NORUN switches for partitions.

WRITE_PROTECT (Default)

NOWRITE_PROTECT

Tells the controller whether data contained on the unit can be overwritten.

Specify WRITE_PROTECT to prevent host write operations to the unit. However, the controller may still write to a write-protected RAIDset to satisfy a reconstruct pass or to reconstruct a newly replaced member. Additionally, metadata, reconstruct, and copy writes are still allowed to RAIDsets and mirrorsets.

Specify NOWRITE_PROTECT to allow the host to write data to the unit. This allows the controller to overwrite existing data. NOWRITE_PROTECT is the default for transportable disks.

WRITEBACK_CACHE (Default)

NOWRITEBACK_CACHE

Enable or disable the write-back data caching function of the controller. The controller’s write-back caching feature improves write performance. NOWRITEBACK_CACHE is the default on transportable disks.