Command Line Interface Guide

Some controllers allow you to remove a physical disk from a virtual disk. In this case, do not specify to
remove the physical disk.
The pdisk=<PDISKID> parameter indicates a physical disk by specifying either
connector:enclosureID:targetID or connector:targetID.
Cachepolicy=<d | c>
cachepolicy=<d | c>] Parameter
Different controllers support different cache policies. The following table displays how to specify the
[cachepolicy=<d | c>] parameter for each of the cache policies.
Table 100. Cache Policy Parameters
Cache Policy cachepolicy=d | c Parameter Specification
Direct I/O cachepolicy=d
Cache I/O cachepolicy=c
Diskcachepolicy=<disabled | enabled>
Different controllers support different disk cache policies. The following table indicates how to specify
the [diskcachepolicy=<disabled | enabled>] parameter for each of the cache policies.
Table 101. Disk Cache Policy Parameters
Disk Cache Policy diskcachepolicy=disabled | enabled Parameter
Specification
Disabled diskcachepolicy=disabled
Enabled diskcachepolicy=enabled
Readpolicy=<ra | nra | ara | rc | nrc>]
Different controllers support different read policies. The following table displays how to specify the
readpolicy=<ra | nra | ara | rc | nrc> parameter for each of the read policies.
Table 102. 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.
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