> > As long as you are nonswappable, either via the SRM attribute, > >or by holding the local lock, which prevents RCT Quiesce from > >proceeding. Otherwise, the real frame backing a fixed page can > >change. > > Why doesn't that cause problems for I/O? Typically an access method > does not obrain and retain the local lock until the I/O completes.
RCT Quiesce processing does a PURGE QUIESCE. This waits for completion of I/O operations which have been started. Queued operations which have not yet been started are returned to the IOS driver's purge exit. The IOS driver (EXCP, VSAM, Meadi Manager, for example), retranslates the channel programs as needed after RCT Restore. Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
