Quick Reference Guide

RAIDCFG 189
-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 4/IM, PERC 4/SC,
PERC 4/Di, PERC 4/DC, PERC
4e/DC, and PERC 4e/Di
• PERC 5/E Adapter, PERC 5/I
Integrated, PERC 5/i Adapter
• PERC 6/i Integrated, PERC
6/i Adapter, PERC 6/E
Adapter
• PERC 7 and PERC 8
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 are ignored.
• wc — Write-Caching sets the
controller to send a write-request
completion signal only after the data
is written to the disk.
Table 4-4. Creating Virtual Disks (continued)
Mandatory
Options and
Arguments
Optional
Parameters
Valid Parameter
Arguments
Description