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Usage notes

 

The command can be used in two ways:

1. At restart, from the CSQINP1 initialization input data set, to specify your standard page sets:

   • These definitions are not retained so define them at each queue manager start using a data set referenced from CSQINP1.

   • We cannot specify the DSN keyword if issuing the command from CSQINP1.

   • If more than one DEFINE PSID command is issued for the same page set, only the last one is processed.

2. While the queue manager is running, to dynamically add a page set:

   • The command must specify the DSN keyword and can be issued from either of the following:

     • The z/OS console.

     • The command server and command queue by means of CSQUTIL, CSQINPX, or applications.

   • The page set identifier (that is the PSID number) may have previously been used by a queue manager. It should therefore be freshly formatted by a FORMAT(RECOVER) statement in CSQUTIL, or formatted by with a FORMAT(REPLACE) in CSQUTIL.

   • We cannot dynamically add page set zero.

   • The BUFFPOOL parameter can specify a currently unused buffer pool. If the buffer pool was defined in CSQINP1 but not used by any PSID, then the number of buffers specified there is created if the required virtual storage is available. If this is not available, or if the buffer pool was not defined in CSQINP1, the queue manager attempts to allocate 1000 buffers. If this is not possible, 100 buffers are allocated.

   • You should update your queue manager started task procedure JCL and your CSQINP1 initialization input data set to include the new page set.

 

Parent topic:

DEFINE PSID

sc11180_

 

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