Quick Reference Guide

RAIDCFG 91
-ctrl -ac=cvd
-c=id -ad=
ch:targ,ch:targ, ...
[or ch:targ:encl,...]
or
controller action=
createvdisk
controllerid=id
adisk=
channel:target:lun,
channel:target:lun,...
[or channel:target:
enclosure,...]
-wp
or
writepolicy
wb, wt, wc, nwc Sets the write policy for the virtual disk. The valid
arguments are:
wb — (Write-Back Caching) sets the controller to
send a write-request completion signal as soon as the
data is in the controller cache but has not yet been
written to disk.
wt — (Write-Through Caching) sets the controller to
send a write-request completion signal only after the
data is written to the disk.
NOTE: The wb and wt options are supported on the
following RAID controllers only:
• PERC 3/DC, PERC 3/QC, PERC 3/Di, PERC 3/SC
• PERC 4/IM, PERC 4/SC, PERC 4/Di, PERC 4/DC,
PERC 4e/DC, and PERC 4e/Di
• PERC 5/E Adapter
NOTE: The PERC 4/IM controller has a fixed set of read,
write, and cache policies. If you set any of these policies
while creating a virtual disk, your settings will be ignored.
wc — (Write-Caching) sets the controller to send a
write-request completion signal only after the data is
written to the disk.
nwc — (No-Write-Caching) specifies that the
controller does not send a write-request completion
signal after the data is written to the disk.
NOTE: The wc and nwc options are supported on the
following RAID controllers only: CERC SATA 1.5/CH and
PERC 3/Di.
The -wp option is optional and can be added to the
command line in any order after the mandatory option
combination.
For SCSI controllers, the value of lun should always be 0.
For SAS controllers, the value of enclosure can be
non-zero, in which case you need to specify values for
channel, target, and enclosure.
Table 4-4. Creating Virtual Disks (continued)
Mandatory Options
and Arguments
Optional
Parameters
Valid Parameter
Arguments
Description