The SYSPLEXGROUP parameter associated with the SYSTEM statement enables the name of an IBM Session Manager Sysplex Group to be specified for an IBM Session Manager instance. On start-up, the IBM Session Manager instance will join this group and if a number of other IBM Session Manager instances specify the same group name then they will automatically connect to each other. Each IBM Session Manager instance must be in the same Sysplex (either in the same instance of z/OS or other z/OS instances) and can be one of several types (see below).
The type of Sysplex instance is specified using the SYSPLEXTYPE parameter, also associated with the SYSTEM statement. The possible types of Sysplex instance are:
Note: On the mainframe, the SWITCHPLX command is used in a Sysplex environment to transfer all users from one instance to another.
On the APPL statement, the RECOVERYLEVEL parameter specifies the Sysplex recovery level. This parameter defines the recoverability of forward sessions to the application when the ACB used is being opened. Possible values are:
Recover the application session if the owning (target) IBM Session Manager instance fails or the IBM Session Manager Controller fails. Can be used only with SYSPLEXTYPE I IBM Session Manager instances.
Recover the application session if the owning (target) IBM Session Manager instance fails. This value can be used only with SYSPLEXTYPE I IBM Session Manager instances.
No recovery will be attempted for this application. This value can be used with SYSPLEXTYPE I or N IBM Session Manager instances.
For more information on configuring and operating a Sysplex in IBM Session Manager, and on implementing a VTAM session recovery mechanism, see 'Parallel Sysplex support' in the Installation and Customization manual.