Xref: utzoo comp.sys.dec:3774 comp.os.vms:28999
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From: dafj@vax87.aud.auc.dk
Newsgroups: comp.sys.dec,comp.os.vms
Subject: Re: BACKUP/IMAGE NEEDS RINGS!
Message-ID: <401.26c7b960@vax87.aud.auc.dk>
Date: 14 Aug 90 08:42:08 GMT
References: <1990Aug13.025431.29599@ux1.cso.uiuc.edu>
Lines: 32

In article <1990Aug13.025431.29599@ux1.cso.uiuc.edu>, tundra@ux1.cso.uiuc.edu (John Kemp) writes:
> 
> 
> Doing an image backup on VMS5.1? Watch out for this GOTCHA!
> 
> $ backup/image disk tape
> $! 	you fill up three tapes for one disk
> $! 	you remove the write rings just to be safe
> $ backup/image tape disk
> $! 	at the end of restoring the first volume you get: 
> $! 	%SYSTEM-I-IVCHAN, invalid I/O channel messages by the thousands
> $! 	you take out your sledge hammer and operate on the hardware
> 
> Solution?  LEAVE THE WRITE RINGS IN THE TAPES!
> 
> Don't ask me why, but standalone backup wants write
> access to that tape.  Any comments from other poor souls
> who have seen this error?  Is it fixed in VMS5.3?
> 

I'm a little confused here. Are you doing a standalone-backup, ie. shutdown the
system and reboot a standalone-vmb (micro-vms) OR
are you doing an image-backup on a running system.

I must say I've *NEVER* seen BACKUP behave like this.
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