Networker

Re: [Networker] SDLT320 unreadable tapes

2004-01-20 19:45:22
Subject: Re: [Networker] SDLT320 unreadable tapes
From: Tim Mooney <mooney AT DOGBERT.CC.NDSU.NODAK DOT EDU>
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Date: Tue, 20 Jan 2004 18:45:04 -0600
In regard to: [Networker] SDLT320 unreadable tapes, John Herlihy said (at...:

>This is the environment:
>Tru64 v5.1A
>Networker Power Edition v6.1.3
>SDLT320 drives

>Here is the scanner output:
>=================================================
>osun5680[/]# scanner -s nsr01 -vim /dev/rmt/0cbn
>scanner: using 'rd=server1:/dev/rmt/0cbn' as the device name
>scanner: Opened /dev/rmt/0cbn for read

I deleted subsequent messages while cleaning my INBOX after a long
weekend, so this may have already been pointed out, but you don't mention
"Solaris" anywhere in your environment description above.  That device
file matches exactly what I would expect for a

- compressing (highest available density)
- Berkeley-style close
- non-rewinding

device file name on a Solaris box.  I wouldn't expect to see anything like
that on a Tru64 box (which always uses Berkeley style close, uses a
completely different naming convention, etc).

Is there a Solaris host involved in this at all, that hasn't been
mentioned?

>scanner: Rewinding...
>scanner: Rewinding done
>scanner: setting position from fn 0, rn 0 to fn 2, rn 0
>scanner: Opened /dev/rmt/0cbn for read
>scanner: unexpected file number, wanted 2 got 112

Hmmm, could the rewind have failed?  What does

        ls -al /dev/rmt/0cbn

and then

        ls -alL /dev/rmt/0cbn

report for /dev/rmt/0cbn?  I've never seen it with NetWorker, but I've
certainly seen situations where admins have used the wrong tape device
name when doing something like

        tar -cf /dev/rmt/0cbnb /var

With no `/dev/rmt/0cbnb' tape device, you just end up creating an enormous
file in the /dev/rmt directory named 0cbnb.  That's not what's happening
here, is it?

Tim
--
Tim Mooney                              mooney AT dogbert.cc.ndsu.NoDak DOT edu
Information Technology Services         (701) 231-1076 (Voice)
Room 242-J6, IACC Building              (701) 231-8541 (Fax)
North Dakota State University, Fargo, ND 58105-5164

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