Networker

Re: [Networker] Antw: RE: [Networker] Tapes marked full after a few gigs

2005-08-02 15:23:14
Subject: Re: [Networker] Antw: RE: [Networker] Tapes marked full after a few gigs
From: "Bolay, Vincent" <vincent.bolay AT MEDTRONIC DOT COM>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Tue, 2 Aug 2005 21:20:05 +0200
The server is connected to a SAN, but for its own use. We only perform LAN 
backups.
There is an ECC Host Agent running on the server, but we got the problems 
before we installed this agent.

I made several changes in my configuration following the advice I received from 
this mailing list:

Apply the latest sd patch 113277-35
Apply the latest Sun Recommended patches:
SunOS lau-backup2-b 5.9 Generic_118558-10 sun4u sparc SUNW,Sun-Fire-280R
Install the latest firmware in the drives and the Library: V83 and 2.15.03
Remove set scsi_options=0x7F8 from /etc/system

I still got tapes full after a few gigs. I will wait a few weeks and see if 
there is an improvement.

Thanks
Vincent



-----Original Message-----
From: Thorsten Linow [mailto:Linow.Thorsten AT talkline DOT de]
Sent: Tuesday, August 02, 2005 3:47 PM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU; Bolay, Vincent
Subject: Antw: RE: [Networker] Tapes marked full after a few gigs


Hi Vincent,

Is Your Legato Networker Server connected to a SAN?
We had semilar problems by having a visual SAN Agent daemon running on our 
Backup-Server.
Once it was stopped, the Problem was gone. The visual SAN Agent obviously was 
faulty.

H.t.h.

Kind Regards Thorsten

****************************************************************************
*  Thorsten Linow
*  Informatik Services -UNIX, Backup & Restore-
*  Talkline GmbH & CO KG
*
*  Talklineplatz 1
*  25337 Elmshorn
*
*  @-Mail: Linow.Thorsten AT Talkline DOT DE 
*
*  Internet: www.talkline.de 
****************************************************************************

>>> "Bolay, Vincent" <vincent.bolay AT MEDTRONIC DOT COM> 22.07.05 10:47:17 >>>
This is what I have in /etc/system :

set sd:sd_max_throttle=20
set scsi_options=0x7F8
set sd:sd_io_time=0x78

These settings are needed by the EMC box. I doubt that the sd settings may have 
an influence for st.
scsi_options=0x7F8 means everything enabled.

Vincent

-----Original Message-----
From: Legato NetWorker discussion
[mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU]On Behalf Of Robert Maiello
Sent: Thursday, July 21, 2005 11:23 PM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU 
Subject: Re: [Networker] Tapes marked full after a few gigs


With older SDLT320 drives I had a similar problem; although new media
faired a little better.  For SDLT320 there was a calibration track
written to the media when it is first written.  If a bad drive writes
this track other drives have a problem reading it.  Based on tapes I
send to Quantum/ATL they replaced certain drives.   This doesn't
sound like your problem though.. your saying new media on either drive
will produce the write error.

It being LVD scsi attached, I'd definitely check/swap out cables and
terminators.  Check /etc/system and make sure you have no scsi-options
line throttling the bus.

Robert Maiello
Pioneer Data Systems


On Wed, 20 Jul 2005 11:37:10 +0200, Bolay, Vincent
<vincent.bolay AT MEDTRONIC DOT COM> wrote:

>Hello,
>
>This is my config:
>
>SunOS lau-backup2-b 5.9 Generic_117171-05 sun4u sparc SUNW,Sun-Fire-280R
>Patch: 113277-24 SunOS 5.9: st, sd and ssd Patch
>Sun StorEdge(TM) Enterprise Backup 7.2.Build.172 Network Edition/35
>Storagetek Library L80 with Quantum SDLT320 drives firmware rev 80, SCSI LVD
>
>I often get the following messages:
>
>/nsr/logs/daemon.log:
>
>07/20/05 01:32:41 nsrd: media notice: sdlt320 tape DEX066 on /dev/rmt/0ubn
is full


>07/20/05 01:32:41 nsrd: media notice: sdlt320 tape DEX066 used 28 GB of 160
GB capacity
>07/20/05 01:32:59 nsrd: media notice: Volume "DEX066" on device
"/dev/rmt/0ubn": Block size is 32768 bytes not 131072 bytes. Verify the
device configuration. Tape positioning by record is disabled.
>
>/var/adm/messages:
>
>Jul 20 01:32:41 lau-backup2-b scsi: [ID 107833 kern.warning] WARNING:
/pci@8,700000/pci@1/scsi@2/st@1,0 (st50):
>Jul 20 01:32:41 lau-backup2-b   Error for Command: write
Error Level: Fatal
>Jul 20 01:32:41 lau-backup2-b scsi: [ID 107833 kern.notice]     Requested
Block: 9579                      Error Block: 9579
>Jul 20 01:32:41 lau-backup2-b scsi: [ID 107833 kern.notice]     Vendor:
QUANTUM                           Serial Number:  P    i
>Jul 20 01:32:41 lau-backup2-b scsi: [ID 107833 kern.notice]     Sense Key:
Media Error
>Jul 20 01:32:41 lau-backup2-b scsi: [ID 107833 kern.notice]     ASC: 0xc
(write error), ASCQ: 0x0, FRU: 0x0
>
>It can happen on any drive and with new or used tapes. The tapes are
labeled always the same way.
>I know that this is a known issue, but nobody (Sun, Sunmamagers, Google)
has been able to provide a solution yet.
>
>TIA for your replies
>
>Vincent Bolay
>Systems Engineer
>Medtronic Europe S�rl
>Route du Molliau 31
>Case postale
>CH-1131 Tolochenaz
>Switzerland
>Phone: (+41 -21) 802 75 34
>Fax: (+41 -21) 802 79 11
>E-mail: vincent.bolay AT medtronic DOT com 
>
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Note: To sign off this list, send a "signoff networker" command via email
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