Re: Mirrowwrite log parallel2
1998-07-21 03:30:52
According to Mike Stewart:
> *** Comments From: STEWAJM - Stewart, Mike; 07/20/98 10:40am
>
> Along with the other folk's ADSM server crashes which occurred
> last week, mine went down also. Mine wasn't as simple as
> a restart, though, and resulted in lost data.
>
> Basically, the MVS Server (3.1 0.2) failed with an 0C1.
> When it was restarted it complained about:
> ANR0209E Page address mismatch detected
> on _both_ the log and mirror log files.
>
> After discussion with ADSM support, I found I had
> to run a dsmserv format on the log/db and restore
> the db from the latest backup. Since the log was corrupt there
> was no possibility of performing a roll-forward recovery, and
> a good bit of data which had migrated from disk to
> tape was lost.
>
> I have changed my options files from the default:
>
> mirrorwrite log parallel
>
> to:
> mirrowwrite log sequential
>
> which I hope will help prevent both the log and log mirrow from
> _both_ being damaged in the future.
>
Mit freundlichen Gruessen
Heinz Flemming
-----------------------------------------------------------------------
Heinz Flemming flemming AT rz.uni-karlsruhe DOT de
Heinz Flemming flemming AT rz.uni-karlsruhe DOT de
Computing Center, University of Karlsruhe
Zirkel 2, P.O.Box 6980
D-76128 Karlsruhe
Germany
phone 0721 - 608 6427 fax 0721 - 37550
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