George,
You should check /nsr/cores for any new core dumps. My guess is
you'll see a core dump for nsrmmd. I've seen this problem with
tapes that were being written to and either nsrmmd or NetWorker
in general went down unexpectedly.
You should also check /nsr/logs/daemon.* and see if you can find
any problems that happened during the history of that tape. My
guess is if you still have the logs you'll see some kind of crash
during the writing to that tape.
Another comment from your original email bothers me. You mention the
tape was full so you write protected it. Once a tape is full there
is no need for you to write protect it. NetWorker marks the tape
as full and will not try to write to it. Could you explain the logic
of write protecting it to me?
Thanks,
Carston
-----Original Message-----
From: Legato NetWorker discussion
[mailto:NETWORKER AT LISTMAIL.TEMPLE DOT EDU]On Behalf Of George Sinclair
Sent: Monday, March 17, 2003 11:32 AM
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Subject: Re: [Networker] Has anyone seen this one?
I'm not familar with any way to remove savesets from a tape. I guess you
were suggesting removing the saveset from the media database using the
command line?
I opened a call with Legato about this matter. They suspect that the
media database could contain some corruption, and the corruption is
preventing the tape from mounting. They suggested one possible solution
would be to remove the volume, scan the tape and then try mounting.
Perhaps removing the volume would remove the corruption, and since we
still have the tape, we could then scan it back in. Of course, if
corruption is the culprit, I guess we really have nothing to lose since
we can't mount the tape.
I had some more questions for them, and I'm still waiting to hear back.
Will post a follow -up as soon as I know something.
The mminfo command shows the tape as full.
Thanks.
George
Bob Schuknecht wrote:
>
> George,
>
> We've seen this before. Networker wants to write an end-of-file marker on
> this tape.
> Try marking the tape as appendable and see if there is enough space left
on
> it to
> write the EOF. Furthermore, you can always mount the tape manually using
> nsrjb and
> the '-n' switch though I don't know what you'd do with the tape once it
were
> manually
> mounted. Another option is to view the save sets on that volume and delete
> the
> problem save set.
>
> -----Original Message-----
> From: George Sinclair [mailto:George.Sinclair AT noaa DOT gov]
> Sent: Thursday, March 13, 2003 9:38 AM
> To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
> Subject: [Networker] Has anyone seen this one?
>
> Okay,
>
> I went to mount a full LTO tape yesterday, and as NetWorker was trying
> to mount it, a message popped into the nwadmin messages box indicating
> that NetWorker was writing x number of bytes before the crash -- I don't
> recall any crash -- so then it forwards a bunch of records through the
> tape and when it reaches the point where it wants to start writing data
> -- I guess that's what it wanted to do -- it then complains that the
> tape is read-only. Well, of course it's write-protected because the
> volume window shows it as full, so we write-protected it sometime ago.
> NetWorker then ejects the tape. Hmm.... Obviously, un-write protecting
> the tape will not help since there's no space. What should I do?! I
> can't mount the tape without NetWorker insisting on wanting to write to
> it. There was no activity going on on the server or storage node at the
> time. nwadmin shows everything is quiet. All groups are dormant. Nothing
> is running. I can mount other tapes in this same pool, and they mount
> just dandy. Clearly, NetWorker must have had some problem at some point
> in the past and it still thinks it has some stuff to write to this
> volume? How can that be?! How do I fix that?
>
> Thanks.
>
> George
>
> --
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