Users Guide

Read, Write, Cache And Disk Cache Policy Supported By PERC Hardware Controllers
Table 45. Read, Write, and Cache Policy Supported by PERC Hardware Controllers
Read, Write,
and Cache
Policy
PERC H730P Adapter/
Mini Monolithic
PERC H740P
Adapter/ Mini
Monolithic
PERC H730
Adapter/ Mini
Monolithic
PERC H330
Adapter/ Mini
Monolithic
PERC H840
Adapter
Cache settings Yes Yes Yes No Yes
Read Policy Yes Yes Yes No Yes
Read Ahead
(Enabled)
Yes Yes Yes No Yes
Adaptive Read
Ahead
No No No No No
No Read Ahead
(Disabled)
Yes Yes Yes Yes Yes
Write Policy Yes Yes Yes No Yes
Write Back
(Enabled)
Yes Yes Yes No Yes
Write Through
(Disabled)
Yes Yes Yes Yes Yes
Force Write
Back (Enabled
Always)
Yes Yes Yes No Yes
Write Cache
Enabled
Protected
No No No No No
Cache Policy No No No No No
Disk Cache
Policy
Yes Yes Yes Yes Yes
Cache I/O No No No No No
Direct I/O No No No No No
Enclosure Support On PERC Hardware Controllers
Table 46. Enclosure Support on PERC Hardware Controllers
Enclosure Support PERC H730P
Adapter/ Mini
Monolithic
PERC H740P
Adapter/ Mini
Monolithic
PERC H730
Adapter/ Mini
Monolithic
PERC H330
Adapter/ Mini
Monolithic
PERC
H840
Adapter
Can an enclosure be attached
to this controller?
No No No No Yes
Supported Features On The PERC S140 Controller
This section identies the controller-supported features and whether or not an enclosure can be attached to the controller.
• Controller Tasks
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