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  3. July 2020

Re: Disks are getting hammered ?SMPO0001?

What's a "parallel save", Rob?  I read the IBM pages and ended up more lost than I started.

On 7/22/2020 2:51 PM, Rob Berendt wrote:
According to a case I have opened:
Straight to the reported issue we would like to advise that we usually recommend NOT to use SWA for the IFS portion of your save. Save-while-active rarely provides a benefit for the IFS, and can especially hurt the performance of a parallel IFS save. Even if SAVACT(*YES) is specified, a parallel save requires SAVACT(*SYNC), in which no IFS data is written to any of the tapes until after all the IFS objects are check-pointed.

Oh, and yes I am using a parallel IFS save.

Rob Berendt



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