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- From: STAN@VM.TEMPLE.EDU (Stan Horwitz)
- Newsgroups: bit.listserv.l-vmctr
- Subject: VMarchive dasd crash
- Message-ID: <16B50142C2.STAN@VM.TEMPLE.EDU>
- Date: 9 Jan 93 03:57:06 GMT
- Sender: news@cronkite.ocis.temple.edu (NetWork News (readnews))
- Organization: Temple University
- Lines: 31
-
- Before I post my question, I must say that I am not the person here who
- installs our IBM software. I am a user consultant, not a systems analyst.
-
- We here at Temple University are setting up VMarchive for general use. In a
- meeting today about VMArchive, one outstanding issue came up which concerns
- me a great deal.
-
- We will have our VMArchive recalls scheduled every hour and archives every 2
- hours. In any event, we are setting up a series of five 107Meg staging
- areas abd we gave sixteen 3480 tape drives. This should handle quiet a lot
- of user archiving activity. I am concerned about the DASD area catalog
- which contains the information about the archived files both in the staging
- area and on tape. After a lot of archiving activity, exactly how much
- trouble will we be in if this catalog file become corrupt or destroyed?
-
- The archived files will be fine (in this scenerio), but we won't have a
- record of what's there. We definitely need a backup procedure for the
- master VMArchive catalog file. My boss suggested that it would be okay to
- do one backup of this file at the end of each day. That idea doesn't sit
- well with me. What I want to know is if there is anyway of backing up this
- single file perhaps hourly to another disk file just in case the original
- goes bad. This way, all we'l lose is an hour's archiving activity. Could
- we just schedule a vmschedule job to kick in every hour and do this backup.
- I was told this wouldn't work, but it seems like a good idea to me.
-
- This can't be a unique problem. I am sure our DASD devises are no more or
- less reliable than the norm. How do other people handle this problem? I do
- not want my department caught with our pants down if some big wig gets angry
- because they can't get back an archived file because our catalog got
- corrupted even though the actual file may be fine. Any thoughts on this
- matter? Thanks much!
-