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- Message-ID: <IBM-MAIN%93010714210701@VM1.CC.UAKRON.EDU>
- Newsgroups: bit.listserv.ibm-main
- Date: Thu, 7 Jan 1993 14:12:22 EST
- Sender: IBM Mainframe Discussion list <IBM-MAIN@RICEVM1.BITNET>
- From: Arthur Gutowski <AGUTOWS@WAYNEST1.BITNET>
- Subject: Re: Dangling VSAM truenames
- In-Reply-To: Message of Thu, 7 Jan 1993 01:21:00 PST from <LDW@USCMVSA>
- Lines: 28
-
- On Thu, 7 Jan 1993 01:21:00 PST Leonard D Woren said:
- >> the only way to recover this situation is SUPERZAP VTOC.
- >> (I can't erase all VSAM files on volume)
- >> I change in VTOC bit PASSWORD PROTECTED end erase file using
- >> DISP=(OLD,DELETE) or from ISPF.
- >
- >This type of approach should be used only as a last-ditch effort, if
- >you have ICF catalogs. ICF provides enough recovery capability that
- >this should never be necessary. If you do the above for ICF VSAM
- >objects, you'll end up with junk in the VVDS, and likely trouble down
- >the road.
- Yes, this approach is tricky. Delete VVR will clean up the VVDS, though.
- If the VVR entries are gone with the catalog entries, then ICF can't
- do anything for you anyway. Then you have to zap the VTOC and scratch the
- datset. We recently bought VSAM Mechanic. An invaluable tool for cleaning
- up VSAM objects that got trashed beyond ICF's ability to recover. It also
- provides other VSAM utilities that AMS and DFP don't have. I think we
- paid around $5K for it. Well worth the cost for us.
-
- >I cannot imagine any reason for not converting to a pure ICF catalog
- >environment. ICF catalogs are faster, smaller, and more reliable than
- >VSAM catalogs and CVOLS, and I don't think there are any negatives.
-
- If you're sharing a catalog with VM, which isn't smart enough to handle ICF,
- then you have no choice but to use VSAM catalogs. We share our ACF2 database
- which means we have to share a catalog.
-
- /Art
-