GENSWAP considerations

ISPF display notes

When you first enter the FDRPAS ISPF panels, press Enter to display all active SWAP tasks (whenever you press Enter again, it updates the display and adds any volumes that have recently become active).

Then type the SORT command on the command line. In the sort field display that appears, next to the STATUS field type “1 A” to sort on the status field. This way, volumes that are actively copying data appear first in the display, volumes that are in “CONFIRM” status appear next, and inactive volumes last.

By default, the ISPF display shows a number of lines for each volume, which can limit the number of volumes displayed at a time. Use PF10 (LEFT) or PF11 (RIGHT) to switch to alternate views that display more volumes per screen.

WAITSWAPTERM notes

If it is necessary to ensure that the swap of all the volumes have completed before performing another process on these volumes (for example, restarting HyperSwap or AutoSWAP), then a MONITOR TYPE=WAITSWAPTERM job should be used. See MONITOR WAITSWAPTERM statement for the command syntax; for examples of usage see FDRPAS and IBM GDPS/PPRC HyperSwap and FDRPAS and EMC AutoSWAP.

Dealing with possible problems

If a volumes has very high activity and the I/O from SWAP or SWAPDUMP is interfering with the user of the volume by applications, then you can:

• Suspend the active SWAP or SWAPDUMP by specifying SUSPEND on the ISPF panel. When you are ready to resume the SWAP or SWAPDUMP process, specify RESUME on the ISPF panel.
• Slow down the I/O from SWAP or SWAPDUMP by specifying PACEDELAY on the ISPF panel.
• Terminate processing of the volume by specifying ABORT on the ISPF panel. In this case, you will want to resubmit the SWAP or SWAPDUMP job for this volume at a later time, probably close to the time of running the CONFIRM job. If you aborted this volume or had volumes fail, you can resubmit the GENSWAP that generated the SWAP or SWAPDUMP jobs using the original MOUNT statements by adding an additional operand of ALREADYINSWAP=BYPASS to the GENSWAP statement instructing the GENSWAP process to bypass any volumes that are already in SWAP status. Also, specify SWAPID= with a number higher than the highest number generated by the original SWAP or SWAPDUMP jobs.