Cisco UCS User Manual - Page 44
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RAID Configuration
Automatic Setup without Redundancy
Automatic setup without redundancy requires one or more hard drives. UCS-SCU creates RAID 0 with
this option.
Note
This option does not work, if number of HDDs are more than thirty-two.
Table 7-3
Table 7-3
Parameters
Controller
RAID Level
Stripe Size
Read Policy
Writer Policy
Cache Policy
Size (MB)
Note
The common parameters, except for total size, are the default values for the controller.
Automatic Setup with Redundancy
Automatic setup with redundancy is the default RAID configuration option. This configuration requires
at least two physical drives to be available. If two physical disks are not available, the default RAID
configuration would be automatic setup without redundancy.
Note
This option does not work, if number of HDDs are more than thirty-two.
Table 7-4
Table 7-4
Parameters
Controller
RAID Level
Stripe Size
Read Policy
Writer Policy
Cache Policy
Size (MB)
Cisco UCS Server Configuration Utility, Release 5.0
7-4
shows the default values that are displayed for automatic setup without redundancy.
Default Values for Automatic Setup without Redundancy
shows the default values that are displays.
Default Values for Automatic Setup with Redundancy
Chapter 7
Values
MegaRAID SAS <family>
0
64
No Read Ahead
Write Back
Direct IO
Depends on the physical disk size
Values
MegaRAID SAS <family>
1
64
No Read Ahead
Write Back
Direct IO
Depends on the size of the logical disk
Configuring RAID Levels
OL-32096-01