Networker

Re: [Networker] Tapes being marked as full with hardly any data

2005-01-13 11:57:30
Subject: Re: [Networker] Tapes being marked as full with hardly any data
From: Oscar Olsson <spam1 AT QBRANCH DOT SE>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Thu, 13 Jan 2005 17:56:59 +0100
On Thu, 13 Jan 2005, Ray Pengelly wrote:

RP> I'm running networker 7 which controls a Sun L25 SDLT320 autoloader. I have
RP> been using it for more than a year now without problems. I recently have had
RP> a problem with my tapes getting marked as full after only 2-5GB had been
RP> written to them. I noticed errors had been logged about the tape device.
RP> Here is the output:
RP> 
RP>  
RP> 
RP>  
RP> 
RP> 01/12/05 23:07:53 nsrd: media warning: /dev/rmt/0cbn writing: I/O error, at
RP> file
RP> 
RP>  60 record 1788
RP> 
RP> 01/12/05 23:07:53 nsrd: media notice: sdlt320 tape FTY310S1 on /dev/rmt/0cbn
RP> is 
RP> 
RP> full
RP> 
RP> 01/12/05 23:07:53 nsrd: media notice: sdlt320 tape FTY310S1 used 5625 MB of
RP> 160 
RP> 
RP> GB capacity
RP> 
RP> 01/12/05 23:12:36 nsrd: media notice: Volume "FTY310S1" on device
RP> "/dev/rmt/0cbn
RP> 
RP> ": Cannot decode block. Verify the device configuration. Tape positioning by
RP> rec
RP> 
RP> ord is disabled.
RP> 
RP>  
RP> 
RP> Is this a tape drive problem? Anyone now how to debug this or have nay
RP> suggestions?
RP> 
RP>  
RP> 
RP> Any help is appreciated.

You probably haven't used the correct block size for your devices.

1. Verify that you're using the correct st.conf, the drive manufacturer 
should have some clue about this.
2. Try setting the block size of the drives to the same value as the one 
in st.conf .

I assume you're running Solaris, since you have a Sun OEM library.

//Oscar

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