Adaptec Command Line Utility - Page 20

Chapter 2: Using the Command Line Utility ● 20
● Wcache—Sets the logical drive write cache mode:
● WT - write-through disabled
● WB - write-back enabled
● WBB - write-back enabled (when protected by battery or flash backup module)
● MaxCacheReadCache—Sets the logical drive SSD read cache mode:
● ION - maxCache on
● IOFF - maxCache off
● MaxCacheWriteCache—Sets the logical drive SSD write cache mode:
● ION - maxCache on
● IOFF - maxCache off
● MaxCacheWritePolicy—Sets the maxCache write cache policy:
● WB - write back enabled. maxCache will store the data on the SSD and write it back to
the hard disks when there is little or no impact on performance. This is the default
policy.
● INSTWB - instant write back enabled. In addition to the default policy, maxCache will
create “dirty pages” on-the-fly for full-stripe writes if there is room on the SSD and the
number of dirty pages is below the threshold.
● WT - write through enabled. Similar to instant write back, but full-stripe writes go to
both the cache and hard disk and no dirty pages are created on-the-fly.
This argument is valid only if MaxCacheWriteCache is ION.
Note:
For more informattion about write cache policy, see setmaxcache on page 31.
Size indicates the size of the logical drive in megabytes. Use MAX to set size to available space.
RAID# indicates the RAID level for the new logical drive. 0, 1, 1E, 10, 5, 5EE, 50, 6, 60, and
volume are supported.
Channel# Drive# lists the space-delimited channel number and device number pairs for each
device to add to the logical drive.
Rvolume is the RAID level for a RAID volume logical drive.
LD# is the logical drive numbers for two or more logical drives to be concatenated into the
RAID volume.
Noprompt: No prompt for confirmation
Examples
ARCCONF CREATE 1 LOGICALDRIVE STRIPESIZE 64 MAX 0 1 0 2 0 3 2 NOPROMPT
ARCCONF CREATE 1 JBOD 0 1 NOPROMPT