Users Guide

Virtual Disk Specification SAS 6/iR PERC H200
Minimum number of physical disks in a
RAID 6
NA NA
Minimum number of physical disks in a
RAID 60
NA NA
Maximum number of disks in configured
state (part of a virtual disk or hot spares)
8 14
* — Approximate value
Read, Write, And Cache Policy Supported By SAS 6/iR And H200 Controllers
Table 59. Read, Write, and Cache Policy Supported by SAS 6/iR and H200 Controllers
Read, Write, and Cache
Policy
SAS 6/iR PERC H200
Cache settings No No
Read Policy No No
Read Ahead (Enabled) No No
No Read Ahead (Disabled) No No
Write Policy No No
Write Back No No
Write Through No No
Force Write Back (Enabled
Always)
No No
Write Cache Enabled
Protected
No No
Cache Policy No No
Disk Cache Policy Yes Yes
Cache I/O No No
Direct I/O No No
Enclosure Support On SAS 6/iR And H200 Controllers
Table 60. Enclosure Support on the SAS 6/iR and H200 Controllers
Enclosure Support SAS 6/iR PERC H200
Can an enclosure be attached
to this controller?
No No
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