RAID
Specify the RAID level that you want for the logical drive.
•In Configure mode, the default setting is the highest RAID level that the configuration can support.
•In Reconfigure mode, the default setting is the existing RAID level for that logical drive. If you specify a different RAID setting, then ACU either ignores the new setting (in Automatic mode) or attempts to migrate the logical drive to the specified RAID level (in Custom mode).
Size
Enter the capacity that you want the logical drive to have, in megabytes. The default size setting for new logical drives is MAX. In this case, ACU creates a logical drive of the maximum possible size from the physical drives that you assigned to the array.
In Reconfigure mode, the default setting is the existing size of the logical drive. If you enter a larger value, ACU extends the logical drive to the new size if there is unused drive capacity on the same array, as long as the operating system supports logical drive extension. You cannot reduce the size of the logical drive.
CAUTION: Back up all data before extending a logical drive.
Sectors
This option specifies the number of sectors that are to comprise each track. Enter 32 to disable MaxBoot or 63 to enable it.
•For new logical drives, the default setting is 63 if the logical drive is larger than 502 GB. Otherwise, the default setting is 32.
•For an existing logical drive, the default setting is the existing setting.
Logical drive performance is likely to decrease with MaxBoot enabled.
StripeSize
This option specifies the stripe size for the logical drive in kilobytes. For RAID 0 or RAID 1 arrays, any of the stripe size values listed in the sample script can be used. For RAID 4, RAID 5, or RAID 6 (ADG) arrays, the maximum stripe size on some controllers is 64 KB. For information about the maximum supported stripe size of a particular controller, refer to the controller documentation.
If you do not specify a StripeSize value for a new logical drive, ACU uses a default value that is determined by the RAID level that you chose for the logical drive. For RAID 0 or RAID 1, the default stripe size is 128 KB, whereas for RAID 4, RAID 5, or RAID 6 (ADG) the default stripe size is 16 KB. (However, for RAID 5 on a Smart Array 6400 Series controller, the default stripe size is 64 KB.)
In Reconfigure mode, the default setting is the existing stripe size for the specified logical drive. If you specify a stripe size that is different from the existing value, then ACU attempts to migrate the logical drive to the stripe size that you specify.
CAUTION: Back up all data before extending a logical drive.
ArrayAccelerator
This option specifies whether the array accelerator is enabled or disabled for the specified logical drive. The default value is Enabled.
LogicalDriveSSPState
This option is valid only for controllers that enable SSP on a logical drive basis (at present, this applies only to the RA4x00). Other controllers that support SSP use the SSPState option ("SSPState" on page 36).
Scripting in ACU 38
