Other temporary storage security considerations

You can define the queue names on the PREFIX attribute of the TSMODEL resource definition as follows:
  • By specifying a fully identified name that exactly matches the queue name specified on a READQ TS or WRITEQ TS command. This can be from 1 to 16 alphanumeric characters.
  • By specifying a generic name, or prefix, that corresponds to the leading alphanumeric characters of a set of queue names.

    It follows that a prefix can only be from 1 to 15 characters, because if you specify the full 16 characters for a queue name, it must be the name of a specific temporary storage queue.

When a CICS® application issues a temporary storage command (for example, DELETEQ TS, READQ TS, or WRITEQ TS) and temporary storage security is in effect, CICS searches for a TSMODEL resource definition that corresponds to the leading characters of the queue name.

Note that if you include hexadecimal characters in a temporary storage queue name, unpredictable results may occur. Also, if a temporary storage queue name contains an imbedded blank, RACF® truncates the resource name to that blank.