CEMT INQUIRE TEMPSTORAGE

Retrieve information about storage that is used by main temporary storage queues in the CICS® region.

Description

The CEMT INQUIRE TEMPSTORAGE command returns information about the CICS region storage that main temporary storage queues use, and the maximum amount that is available for their use.

Input

Press the Clear key to clear the screen. To start this transaction, type CEMT INQUIRE TEMPSTORAGE (or suitable abbreviations for the keywords). The status is displayed.

To change attributes, overtype your changes on the INQUIRE screen after tabbing to the appropriate field (see Overtyping a display).

If you change the TSMAINLIMIT value, check your current setting for the z/OS® parameter MEMLIMIT. MEMLIMIT limits the amount of 64-bit storage that the CICS address space can use. Your setting for TSMAINLIMIT must not be greater than 25% of the MEMLIMIT value.

Use the CEMT command INQUIRE DSAS or INQUIRE SYSTEM to find the value of MEMLIMIT that currently applies to the CICS system.

Displayed fields

TSMAININUSE(value)
Displays how much storage is currently used by main temporary storage queues. The value is displayed in bytes, megabytes followed by the letter M, or gigabytes followed by the letter G.
TSMAINLIMIT(value)
Displays the current setting for the maximum amount of storage that CICS makes available for main temporary storage queues to use. The value is displayed either in gigabytes, or to the nearest number of megabytes.
If you decrease the TSMAINLIMIT setting, CICS attempts to maintain at least 25% free space in allowed storage above current utilization, so that temporary storage write requests do not reach TSMAINLIMIT too rapidly. The value is set as follows:
  • If there is currently less than 25% free space, TSMAINLIMIT remains unchanged.
  • If at least 25% of the new limit will be free space, the setting is decreased to the value that you choose.
  • If less than 25% of the new limit would be free space, the setting is decreased to the current utilization plus 33% of that utilization.
If you increase the TSMAINLIMIT setting, the value is set as follows:
  • If the new value is not greater than 25% of the value of the z/OS parameter MEMLIMIT, the value that you choose is set.
  • If the new value is greater than 25% of the MEMLIMIT value, TSMAINLIMIT remains unchanged.