3.5.1 Matrix Server Administration Guide

Appendix B: Error and Log File Messages 335

Matrix unable to take control of SAN, because the servers are

unable to perform fencing operations, possibly due to a

networking or fencing hardware failure or misconfiguration.

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 can not be performed.

Matrix Server is unable to exclude servers that have become

unresponsive, or to verify the fencing of servers that were previously

fenced and have not yet been rebooted. Possibly the fencing device is not

responding to the fencing request or the Ethernet connection to the

FibreChannel switch has failed. Also check for other networking or SAN

hardware problems. The servers should be rebooted as soon as possible.

Matrix unable to take control of SAN, because the servers are

unable to write to a majority of the membership partitions,

possibly due to a SAN hardware failure or misconfiguration

and/or because some servers have been excluded from the 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.

Check the matrix configuration and add the server if it is not currently a

member. Also ensure that the server can access the membership

partitions and has write access to them, and check for any SAN hardware

problems.

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.