3.1.2 Matrix Server Administration Guide

Chapter 18: SAN Maintenance 229
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If the status is NOT FOUND or INACCESSIBLE, there may be a problem
with the disk or with another SAN component. When the problem is
repaired, the status should return to
OK.
If the status is
CORRUPT, you should resilver the partition. This step
copies the membership data from a valid membership partition to the
corrupted partition.
NOTE: The membership partition may have become corrupt because it
was used by another application. Before resilvering, verify that it
is okay to overwrite any existing data on the partition.
If the status is
MISMATCH, you will need to determine which
membership partitions are correct (the partitions specified in the local MP
list, or the partition labeled
MISMATCH) and resilver accordingly.
Active and Inactive Membership Partitions
A membership partition can be either active or inactive. 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 option on the Repair menu 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 configuration. 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