3.4.0 Matrix Server Administration Guide

Appendix B: Error and Event Log Messages 231

Matrix unable to take control of SAN. As a result, some

or all filesystem operations may be paused throughout the

matrix. In addition, filesystem mounts and unmounts and

disk imports and deports cannot be performed.

Verify that this message, not one of the previous messages, is displayed.

Also verify that the servers can access the membership partitions and

have write access to them, and that the servers can communicate with the

FibreChannel switch. If no problems are found, contact PolyServe

Technical Support.

Membership partition XXXX is unwritable, possibly due to a

SAN or storage hardware failure. If other membership

partitions become inaccessible, Matrix Server’s

ability to recover from a server failure will be

compromised.

None of the servers in the matrix can write to the specified membership

partition. Ensure that the servers can access the membership partition

and that they have write access for it. If the partition is corrupt, another

alert will display the location of the partition. See “Manage Membership

Partitions with mprepair” on page 193 for corrective actions.

Membership Partitions are corrupt or inaccessible,

preventing SAN access

A majority of the membership partitions are either inaccessible or

corrupt. Matrix Server cannot allow access to the PSFS filesystems while

the Membership Partitions are in this state. To obtain more detailed

information about the state of each Membership Partition, use the

command mprepair -v --get_current_mps.

If membership partitions are reported as not found or inaccessible, there

is a problem with accessing the disk devices; check your hardware

configuration. If membership partitions are reported as corrupt, then

mprepair can be used to repair them, as long as at least one membership

partition is reported to be in a good (OK) state. (See “Manage

Membership Partitions with mprepair” on page 193 for more

information.)