Throughout various CICS® VR processes, CICS VR verifies the consistency and availability
of the RCDSs. Any damaged or unusable RCDS are reported by CICS VR in a
message.
For example, CICS VR
might issue message DWW1605I indicating that an RCDS is full.
Upon notification of a damaged or unusable RCDS, corrective action must
be taken. While CICS VR recommends creating and using three RCDSs for
a CICS VR
XCF group, it can temporarily run with only one or two RCDSs allocated without
affecting any production activity. Therefore, if you are notified that one
or two of the RCDSs are damaged or unusable, you can take the following corrective
action without terminating the CICS VR server address space and affecting
production activity:
- Deallocate the damaged or unusable RCDS from the CICS VR server address space.
An RCDS
can be deallocated from the CICS VR server address space by issuing the following
operator command:
VARY SMS,CICSVR,RCDS(ddname),DELETE
Where
ddname is the ddname the CICS VR server
address space allocated the RCDS as (DWWCON1, DWWCON2, or DWWCON3).
Note: In
some cases, CICS VR
automatically deallocates an unusable RCDS, therefore making this step unnecessary. CICS VR
writes messages to the operator console when an RCDS is found to be unaccessible,
full, etc. Also, CICS VR writes messages to the operator console when
it dynamically deallocates an RCDS that is found to be full or broken.
- Repair the damaged RCDS.
In most cases, as long as there is one existing
RCDS that is correct and undamaged, it might be easiest to simply delete the
damaged RCDS and redefine it. CICS VR can automatically refill an empty
RCDS.
- Reallocate the repaired RCDS to the CICS VR server address space.
An RCDS
can be reallocated to the CICS VR server address space by issuing the following
operator command:
VARY SMS,CICSVR,RCDS(ddname),ADD
Where
ddname is
the ddname the CICS VR
server address space uses to allocate the RCDS as (DWWCON1, DWWCON2, or DWWCON3).
CICS VR
uses the RCDS naming convention when attempting to reallocate an RCDS to
the CICS VR
server address space.
When an RCDS is allocated to the CICS VR server
address space, CICS VR
verifies that its contents are consistent with the other allocated RCDSs.
If an RCDS is found to be outdated or empty, CICS VR automatically adds the missing
information into the empty or outdated RCDS.