ExpressCluster X 2.0 for Windows Reference Guide - Nec

Chapter 4 ExpressCluster command reference
Partition size tuning command
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clpvolsz: the clpvolsz command enlarges and shrinks the disk partition size
Command line:
clpvolsz drive-letter [size]
Description
This command checks the sizes of data partitions mirrored by mirror disk
resource. If the partitions are not of the same size, the command adjusts
the sizes.
Parameter drive-letter Specify the drive letter of the target partition
drive.
size Specify the partition size by byte. If nothing
is specified, the current size is displayed.
Return value 0 succeeded in displaying the size
1 succeeded in changing the size
2 or greater abnormal
Notes Run this command as a user with Administrator privileges.
You cannot extend the partition size by this command.
Shrinking the partition size by using this command may cause the
change of the drive latter. After shrinking the partition size, make sure
to use Disk Management. (Navigate from Control Panel to
Administrative Tools, Computer Management , Disk
Management) to rescan the disk and check the drive letter and
configure as necessary.
When the target partition has been registered as data partition/cluster
partition in the cluster configuration information of the mirror disk
resource, delete the mirror disk resource before shrinking the partition
size and register again after shrinking and reconfiguration of drive
letter.
The partition size is coordinated by MBR. Typically, it is a multiple of
512 bytes .
Examples
Example 1 : When checking the Z drive size
# clpvolsz z:
Drive 8,587,160,064
Example 2: When shrinking the Z drive size to 8,587,159,552Byte
# clpvolsz z: 8587159552
Drive 8,587,160,064 -> 8,587,159,552
Execute it? [Y/N] ->y
SUCCESS
ExpressCluster X 2.0 for Windows Reference Guide