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Users Guide

ManualsBrandsDell ManualsNAS & storage serversOpenManage Server Administrator Version 6.0.1
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Read, Write, and Disk Cache Policy
Table A-17.Read,Write,andCachePolicySupportedbythePERC3/Si,3/Di,CERCSATA1.5/2s,andCERCSATA1.5/6chControllers
Enclosure Support
Table A-18.EnclosureSupportonthePERC3/Si,3/Di,CERCSATA1.5/2s,andCERCSATA1.5/6chControllers
Supported Features on the PERC 5/E, PERC 5/i, PERC 6/E, PERC 6/I, and CERC 6/I
Controllers
This section identifies the controller-supported features and whether or not an enclosure can be attached to the controller.
l "Controller Tasks"
l "Battery Tasks"
l "Connector Tasks"
l "Physical Disk Tasks"
l "Virtual Disk Tasks"
l "Virtual Disk Specifications"
l "Supported RAID Levels"
l "Read, Write, Cache and Disk Cache Policy"
l "Enclosure Support"
For enclosure-supported tasks, see "Enclosure and Backplane Features."
Controller Tasks
Table A-19.ControllerTasksSupportedonthePERC5/E,PERC5/i,PERC6/E,PERC6/I,andCERC6/IControllers
Read, Write, and Cache Policy
PERC 3/SI
PERC 3/DI
CERC SATA 2S
CERC SATA 6ch
Cache settings
Yes
Yes
No
Yes
Read Policy
Yes
Yes
No
Yes
Read Ahead (Enabled)
Yes
Yes
No
Yes
Adaptive Read Ahead
No
No
No
No
No Read Ahead (Disabled)
Yes
Yes
Yes
Yes
Write Policy
Yes
Yes
No
Yes
Write Back (Enabled)
No
No
No
No
Write Through (Disabled)
Yes
Yes
Yes
Yes
Force Write Back (Enabled Always)
No
No
No
No
Write Cache Enabled Protected
Yes
Yes
No
Yes
Cache Policy
No
No
No
No
Cache I/O
No
No
No
No
Direct I/O
No
No
No
No
Enclosure Support
PERC 3/SI
PERC 3/DI
CERC SATA 2S
CERC SATA 6ch
Can an enclosure be attached to this controller?
No
Yes
No
No
Controller Task Name
PERC 5/E
PERC 5/i
PERC 6/E
PERC 6/I
CERC
6/I