IBM System Storage DS3000 Programming Manual page 114

Parameter
backgroundPriority
degradedPriority
securityType
driveMediaType
T10PI
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IBM System Storage DS3000, DS4000, and DS5000: Command Line Interface and Script Commands Programming Guide
Description
The priority for background operations on the disk pool.
Valid values are highest, high, medium, low, and lowest.
The default value is low.
The priority for degraded activities on the disk pool. For
example, disk pool reconstruction after one drive
failures.
Valid values are highest, high, medium, low, and lowest.
The default value is high.
The setting to specify the security level when creating
the disk pool. All logical drive candidates for the disk
pool will have the specified security type. These settings
are valid:
v none - The logical drive candidates are not secure.
v capable - The logical drive candidates are capable of
having security set, but security has not been enabled.
v enabled - The logical drive candidates have security
enabled.
The default value is none
The type of drive media that you want to use for the
disk pool
You must use this parameter when you have more than
one type of drive media in your storage subsystem.
Valid drive media are:
v hdd - Use this option when you have hard drives.
v ssd - Use this option when you have solid state disks.
v unknown - Use if you are not sure what types of drive
media are in the drive expansion enclosure.
v allMedia - Use this option when you want to use all
types of drive media that are in the drive expansion
enclosure.
The default value is hdd.
The setting to specify that a disk pool has T10 PI
(Protection Information) protection to make sure that the
data maintains its integrity. When you use this
parameter, only protected drives can be used for the disk
pool. These settings are valid:
v none - The disk pool does not have T10 PI (Protection
Information) protection.
v enabled - The disk pool has T10 PI (Protection
Information) protection. The disk pool supports
protected information and is formatted with protection
information enabled.
The default value is none