DELL 34XX User Manual

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Parameter
Description
preReadConsistencyCheck
The setting to turn on or turn off preread 
consistency checking. Turning on preread 
consistency checking verifies the consistency of 
RAID redundancy data for the stripes containing 
the read data. Preread consistency checking is 
performed on read operations only. To turn on 
preread consistency checking, set this parameter 
to TRUE. To turn off preread consistency checking, 
set this parameter to FALSE.
NOTE: Do not use this parameter on non 
redundant virtual disks, such as RAID 0 virtual 
disks.
readCacheEnabled
The setting to turn on or turn off the read cache. 
To turn on the read cache, set this parameter to 
TRUE. To turn off the read cache, set this 
parameter to FALSE.
consistencyCheckEnabled
The setting to turn on or turn off the write cache. 
To turn on the write cache, set this parameter to 
TRUE. To turn off the write cache, set this 
parameter to FALSE.
segmentSize
The amount of data (in KB) that the RAID controller 
module writes on a single physical disk in a virtual 
disk before writing data on the next physical disk. 
Valid values are 8, 16, 32, 64, 128, 256, or 512
userLabel
The new name that you want to give an existing 
virtual disk. Enclose the new virtual disk name in 
double quotation marks (" ").
writeCacheEnabled
The setting to turn on write cache capability.
Notes
When you use this command, you can specify one or more of the optional parameters.
You can apply these parameters to only one virtual disk at a time:
• addCapacity
• segmentSize
• userLabel
Add Capacity, Add Physical Disks, And Segment Size
Setting the addCapacity parameter, the addPhysicalDisks parameter, or the segmentSize 
parameter starts a long-running operation that you cannot stop. These long-running operations are 
performed in the background and do not prevent you from running other commands. To show the 
progress of long-running operations, use the show virtualDisk actionProgress command.
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