Networker

Re: [Networker] tape errors - save set terminations

2002-11-22 09:19:13
Subject: Re: [Networker] tape errors - save set terminations
From: Davina Treiber <treiber AT HOTPOP DOT COM>
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Date: Fri, 22 Nov 2002 09:19:42 -0500
What firmware level are your DLT drives on? The latest version is 106 (276A)
and some earlier versions had a bug that causes them to constantly ask for
cleaning.

Also, (probably not related to this) why are you using hbn devices? You will
get better throughput and capacity if you use cbn devices.

On Thu, 21 Nov 2002 17:17:54 -0500, Dona Ashcroft
<Dona.Ashcroft AT ENBRIDGE DOT COM> wrote:

>Environment:
>NetWorker Server - Sun V880 Solaris 8
>NetWorker Server version 6.0.2
>STK9710 tape silo - 8 DLT 7000 tape drives
>clients:  HP-UX, solaris 8, NetWare, W2K
>
>We are getting the following messages:
>
>Nov 20 16:22:08 mastertr0 root: [ID 702911 daemon.notice] NetWorker media:
>(notice) Save set (3690336257) marset:/prod/OP01/ora41 volume 001086 on
>/dev/rmt/4hbn is being terminated because: Media verification failed
>Nov 20 16:22:08 mastertr0 root: [ID 702911 daemon.notice] NetWorker media:
>(notice) Save set (3681801729) oregano:/devl/OAD1/dump volume 001086 on
>/dev/rmt/4hbn is being terminated because: Media verification failed
>Nov 20 16:22:08 mastertr0 root: [ID 702911 daemon.notice] NetWorker media:
>(notice) Save set (3680443905) oregano:/devl/OAD6/dump volume 001086 on
>/dev/rmt/4hbn is being terminated because: Media verification failed
>Nov 21 04:15:10 mastertr0 root: [ID 702911 daemon.notice] NetWorker media:
>(notice) Save set (3696207617) hdq-nt73:E:\ v

olume D00443 on /dev/rmt/6hbn
>is being terminated because: Media verification failed
>Nov 21 04:15:10 mastertr0 root: [ID 702911 daemon.notice] NetWorker media:
>(notice) Save set (3695733249) cwl-nt03et:E:\ volume D00443 on
>/dev/rmt/6hbn is being terminated because: Media verification failed
>Nov 21 04:15:10 mastertr0 root: [ID 702911 daemon.notice] NetWorker media:
>(notice) Save set (3696199682) hdq-nt76:E:\ volume D00443 on /dev/rmt/6hbn
>is being terminated because: Media verification failed
>
>Nov 21 04:15:09 mastertr0 scsi: [ID 107833 kern.warning] WARNING:
>/pci@8,700000/scsi@3/st@4,0 (st25):
>Nov 21 04:15:09 mastertr0       Error for Command: read Error Level: Fatal
>Nov 21 04:15:09 mastertr0 scsi: [ID 107833 kern.notice]         Requested
>Block: 65                        Error
> Block: 65
>Nov 21 04:15:09 mastertr0 scsi: [ID 107833 kern.notice]         Vendor:
>QUANTUM                            Seria
>l Number: qj  6 i  O
>Nov 21 04:15:09 mastertr0 scsi: [ID 107833 kern.notice]         Sense Key:
>Media Error
>Nov 21 04:15:09 mastertr0 scsi: [ID 107833 kern.notice]         ASC: 0x14
>(recorded entity not found), ASCQ: 0x0
>, FRU: 0x0
>
>It would seem that we have bad media, but these errors are occuring
>frequently on a large number and range of tapes.  Initially, it was
>happening on only one tape drive.  That tape drive has been disabled.  For
>a few days, things were okay, but we've started getting the messages (and
>save set failures) again.
>
>Could this be related to the fact that we have tape drives daisy-chained?
>6 of the tape drives are daisy chained into sets of 2 each.  One of the
>tape drives is on its own, and the other tape drive is sharing a scsi card
>with the tape silo.
>
>These errors began after we replaced our NetWorker server with the V880
>and upgraded the OS to Solaris 8.  This also involved a reconfiguration of
>the jukebox.
>
>The problems are occuring on random tapes.  Some of the tapes are
>relatively new, some we've been using for a few months (without problem),
>and some have been around for several months.
>
>Comments please?
>
>
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>Thanks, Dona

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