Creating a file system for the working data

Before you install WebSphere® MQ for Sun Solaris, create and mount a file system called /var/mqm. If possible, use a partition strategy with a separate volume for the data. This means that other system activity is not affected if a large amount of WebSphere MQ work builds up.

To determine the size of the /var/mqm file system for a server installation, consider:
  • The maximum number of messages in the system at one time
  • Contingency for message buildups, if there is a system problem
  • The average size of the message data, plus 500 bytes for the message header
  • The number of queues
  • The size of log files and error messages
  • The amount of SSL trace that is written to the /var/mqm/trace directory

Allow 50 MB as a minimum for a WebSphere MQ server and 15 MB as a minimum for a WebSphere MQ client.