DELL 34XX User Manual

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Parameter
Description
virtualDisksPerGroupCount
Number of equal-capacity virtual disks per disk 
group. Use integer values.
hotSpareCount
Number of hot spares in the storage array. Use 
integer values. For information about hot spares, 
see Assigning Global Hot Spares.
segmentSize
Amount of data (in kilobytes) 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. For information about the 
segmentSize parameter, see Using the Auto 
Configure Command.
cacheReadPrefetch
The setting to turn on or turn off cache read 
prefetch. To turn off cache read prefetch, set this 
parameter to FALSE. To turn on cache read 
prefetch, set this parameter to TRUE.
securityType
The setting to specify the security level when 
creating the disk groups and all associated virtual 
disks.
• none—The disk group and virtual disks are not 
secure.
• capable—The disk group and virtual disks are 
capable of having security set, but security has 
not been enabled.
• enabled—The disk group and virtual disks have 
security enabled.
dataAssurance
The setting to specify that a disk group, and the 
virtual disks within the disk group, has data 
assurance protection to make sure that the data 
maintains its integrity. When you use this 
parameter, only protected physical disks can be 
used for the disk group. These settings are valid:
• none - No explicit data assurance is defined. 
The disk group will be comprised of virtual disks 
that may or may not have data assurance, 
depending on the availability of data assurance 
enabled physical disks. Data Assurance is 
enabled on virtual disks created on disk groups 
that support data assurance. If only data 
assurance physical disks are available, the disk 
groups will be data assurance enabled.
• enabled - The disk group has data assurance 
protection. The disk group supports protected 
information and is formatted with protection 
information enabled.
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