Increase PRFT FACILITY Control Option In Top Secret
Article ID: 46455
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Issue/Introduction
How do you increase the size of the PRFT FACILITY Control Option?
Environment
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Resolution
The shared profile table is a storage area reserved in TSS multi-user address spaces to store TYPE=PROFILE acids at signon as a common pool for the address space. The table is located in Extended Private. Each entry is 16 bytes long and contains: profile acid id, number of users sharing the profile, address of profile, and change indicator.
When the shared profile percentage reaches 100%, the address space must read new profiles into the private SECREC for newly signed on users. This causes additional security file I/O during signon and may reduce the efficiency of TSS for this address space.
This message was introduced at TSS 8.0 SP03 as an informational message indicating the table has reached either 65%, 70%, and 80% of capacity. The table would fill the same prior to TSS 8.0 SP03, however, no message would be received. If the table reaches 100% full, you can increase the PRFT= control option on the facility. (Changing PRFT requires a recycle of the region to pick up.)
If the message you are getting indicates less than 100%, you don't need to do anything at this point. If you later get messages where the percentage is closer to 100%, you can increase the PRFT control option on the facility associated with the address space and recycle the region.
To change it dynamically issue the following on the console :
F TSS,FACILITY(CICSxx=PRFT=4)
and recycle CICS.
In parmlib : FACILITY(CICSxx=PRFT=4)
Do not forget that the PRFT parameter requires a recycle of the region to be taken into account.
There really isnt a drawback other than more storage will be used if you increase the value. Since storage is abundant these days, increasing it shouldnt be a problem. The max size is dependent on the amount of extended storage you have.
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