If the checkpoint needs to be moved to another location, it can be done in two ways:

• System managed rebuild (SETXCF command) if the structure attributes are the same and it is moved to a different coupling facility. Process should be as follows:

  SETXCF START,REBUILD,STRNAME=xxxxx
  or
  SETXCF START,REBUILD,CFNAME=xxxxx

  This process can be very useful when maintenance needs to be done on the coupling facility, or it needs to be powered down.
• Use the JES2 dynamic reconfiguration dialog and move the structure to DASD or a different structure.

If the checkpoint size needs to be increased, it can only be done using the dynamic reconfiguration dialog. Again, two possibilities:

• Move the checkpoint using the dialog to another larger structure or data set.
• If the checkpoint needs to return to the original structure: invoke the dialog to move the checkpoint to another structure or DASD.

When complete, a D XCF of the original structure will show it to be allocated with no connection.

Activate the new policy which will be in a policy change pending status.

SETXCF START,POLICY,TYPE=CFRM,POLNAME=newpol

Issue the rebuild to enlarge the original structure:

SETXCF START,REBUILD,STRNAME=xxxxx

When complete, the reconfiguration dialog must be invoked to move the checkpoint back into the original structure.