Programs can?t get a lock during backup

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Backup & recovery
Naresh wrote in with this question recently: We are currently running V5R3M0. Lately we have noticed the following while doing our backup: SAVLIB LIB(*ALLUSR) DEV(TAP04) ENDOPT(*LEAVE) SAVACT(*SYSDFN) OUTPUT(*OUTFILE) OUTFILE(QGRYJRN/PSAVLOGUSR) One of our user libraries is taking approximately 40 minutes to back up the data areas. During this process, programs trying to update data areas can't get a lock. We used to have this problem a few releases ago, and I'm sure IBM fixed this. Any ideas? -- Deb Tart, associate editor
ASKED: February 27, 2006  11:36 AM
UPDATED: March 5, 2006  8:51 AM

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Hi,

I recommend ending the subsystem with the jobs that are locking the objects which is most likely QINTER. But to be safe you should bring the system to a restricted status which means you endsbs(*all) the only subsystem you would be able to use would be QCTL unless you use a different controlling subsystem.

Best regards,

Vince

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  • ChiGui
    If you are using a SAVE-WHILE-ACTIVE command to do your back-up, it will lock-up the library you are backing up while this library it is being backed up; therefore anny application trying to use any files in those libraries will not work at that point of time. Like the other guy said, it is better to end all subsystems before running your back-up but i understand that it would be hard to do if you have a 24-hour operation shop. I believe that you can do a save-while-active to a physical save file, and then later on the day, you can write that file to tape. That would make your back-up run faster, and te applications would be down for a smaller period of time. You just have to make sure you have enough space in your system resources to do so. Hope that helps.
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