Users Guide

Table 95. Read Policy Parameters
Read Policy readpolicy=ra | ara | nra | rc | nrc Parameter
Specification
Read ahead readpolicy=ra
Adaptive read ahead readpolicy=ara
No read ahead readpolicy=nra
Read cache readpolicy=rc
No read cache readpolicy=nrc
writepolicy=<wb | wt | wc | nwc>]
Different controllers support different write policies. The following table displays how to specify the
writepolicy=<wb | wt | wc | nwc | fwb> parameter for each of the write policies.
Table 96. Write Policy Parameters
Write Policy writepolicy=wb | wt | wc | fwb | nwc Parameter
Specification
Write-back cache writepolicy=wb
Write-through cache writepolicy=wt
Write cache writepolicy=wc
Force write back writepolicy=fwb
No write cache writepolicy=nwc
Controller=id
Specify the controller ID as reported by the omreport storage controller command. For example,
controller=2
Raid=<c | r0 | r1 | r1c | r5 | r6 | r10 | r50 | r60>
Use the raid=<c| r0 | r1| r1c | r5 | r6 | r10 | r50 | r60> parameter to specify a RAID level for a virtual disk.
Different controllers support different RAID levels. For more information about RAID levels a controller
supports and for general information about RAID levels, see the Dell OpenManage Online Help. The
following table displays how to specify the raid=n parameter for each RAID level.
Table 97. Raid level and parameter specification
RAID level raid=n parameter specification
RAID-0 raid=r0
RAID-1 raid=r1
RAID-5 raid=r5
RAID-6 raid=r6
RAID-10 raid=r10
RAID-50 raid=r50
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