Establishing new procedures for VSAM RLS support

You might require new operational procedures in a number of areas as a result of using VSAM RLS support, including integrity of data and management of coupling facilities and structures, use of RESERVEs, switching to non-RLS mode and forward recovery management.

Integrity of data in coupling facility caches
To make sure that non-IBM products or user programs do not compromise the integrity of data in coupling facility caches when they modify the data on a volume, either vary the volume offline to each system in the sysplex, or CF-quiesce the volume using the
```
V SMS,CFVOL(volid),QUIESCE
```
command before running such programs
Management of the coupling facility and coupling facility structures
Use of RESERVEs on volumes that contain sharing control data sets.
Make sure that RESERVEs are not used. Convert RESERVEs on other volumes into enqueues.
Switching to non-RLS mode to run batch update jobs against recoverable data sets.
Management of forward recovery and your forward recovery logs.
Forward recovery differs from forward recovery for non-RLS access:
- The forward recovery log stream must be in the ICF catalog.
- All forward recovery log records for a data set merge into the same log stream.
- Your forward recovery procedure must use the SHCDS FRSETRR, FRUNBIND, FRBIND, and FRRESETRR commands. CICS VSAM Recovery for z/OS automatically issues these commands.
Refer to the DFSMS/MVS documentation for more details.