4.1.0 HP PolyServe Software command reference guide (T5392-96071, October 2010)

Active and inactive membership partitions
A membership partition can be either active or inactive. (This attribute is reported in
the last field of the record displayed by the mprepair --get_current_mps command.)
The current membership partitions should all be active. If there are old membership
partitions in the matrix, you may want to either remove them or mark them as inactive.
A matrix could have an old membership partition if the disk containing it becomes
inaccessible and you then add another partition in its place.
When the disk access problem is corrected, the old membership partition will still be
on the disk and will be marked active.
When a membership partition is active, the disk containing the partition cannot be
imported into the matrix. You may see this situation if you want to import a disk that
was previously used by another matrix. To fix this problem, use the --inactivate_mp
option (described under “mprepair Options” below) to change the state of the
membership partition to “inactive.” You can then import the disk into the matrix.
Sizes for membership partitions
Matrix Server stores the size of the smallest membership partition that was created
during the Matrix Server installation. When you add or replace a membership
partition, the new partition must be at least as large as that original partition. For
example, if you originally created 2-GB, 3-GB, and 4-GB membership partitions,
any membership partitions created later on must be at least 2 GB in size.
Export configuration changes
When you change the membership partition configuration with mprepair, it updates
the membership list on the local server. It also updates the lists on the disks containing
the membership partitions specified in the local MP file. After making changes with
mprepair, you will need to export the configuration to the other servers in the matrix.
To do this, start Matrix Server on the server where you ran mprepair and then select
the Configure option on the Matrix Server Connect window. When the Configure
Matrix window appears, select the Matrix Wide Configuration tab. Select the other
servers in the Address column and then click Export.
HP PolyServe Software 4.1 command reference guide 27