Reference Guide

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 102. 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 103. 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 104. 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 105. 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
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