Description: Before z/OS V2R1, SMF type 92, subtype 11 close records were written when sockets or character special records were closed. Sockets and character special files have very high close rates and do not provide useful information in determining how often files and directories are used. Starting in z/OS V2R1, they are written as subtype 16 close records instead. The sockets and character special file close records will no longer appear in type 92 subtype 11 records. Instead, you need to include type 92 subtype 16 records in the SMFPRMxx parmlib member to collect them.
Element or feature: | z/OS UNIX. |
When change was introduced: | z/OS V2R1. |
Applies to migration from: | z/OS V1R13 and z/OS V1R12. |
Timing: | Before the first IPL of z/OS V2R1. |
Is the migration action required? | Yes, if you want continue to get close records for sockets and character special files. |
Target system hardware requirements: | None. |
Target system software requirements: | None. |
Other system (coexistence or fallback) requirements: | None. |
Restrictions: | None. |
System impacts: | None. |
Related IBM Health Checker for z/OS check: | None. |
Steps to take: Follow these steps: