Folks,

We had a similar experience at 6.x with SCSI drives (DLT) attached to a
storage router and hence onto a SAN.  Periodically, jobs would fail with
tape drive I/O errors and we would end up with a few Gigabytes on a
tape.  After much digging around the issue turned out to be the SCSI
cables connecting the drives to the routers.  When we looked at the
router logs we saw lots of parity SCSI errors.  Replacing the SCSI
cables cured the problem.

Your configuration might be different but I thought I would share the
experience.

Regards,

Paul Esson
Senior Support Engineer
Redstor Limited

Direct:         +44 (0) 1224 595381
Mobile:         +44 (0) 7766 906514
E-Mail:         paul.esson AT redstor DOT com 
Web:            www.redstor.com

REDSTOR LIMITED 
Torridon House
73-75 Regent Quay
Aberdeen
UK
AB11 5AR

Disclaimer:
The information included in this e-mail is of a confidential nature and
is intended only for the addressee.  If you are not the intended
addressee, any disclosure, copying or distribution by you is prohibited
and may be unlawful.  Disclosure to any party other than the addressee,
whether inadvertent or otherwise is not intended to waive privilege or
confidentiality.



-----Original Message-----
From: Legato NetWorker discussion [mailto:NETWORKER AT LISTMAIL.TEMPLE DOT EDU]
On Behalf Of Reed, Irene
Sent: 04 August 2004 17:21
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Subject: Re: [Networker] LTO drive problems after upgrade to NW 7.1

I have been working with Legato with this issue since March of 2004.
They have run me through so many hoops, but the problem keeps happening.
At first they said it was my environment, but now they are saying a lot
of people are starting to have the problem.  They think it is due to
SANs.  Do you have a storage SAN?  If you would like to discuss all the
things Legato has had me try to no avail, lets visit.

Irene

-----Original Message-----
From: Legato NetWorker discussion [mailto:NETWORKER AT LISTMAIL.TEMPLE DOT EDU]
On Behalf Of Itzik Meirson
Sent: Wednesday, August 04, 2004 11:01 AM
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Subject: [Networker] LTO drive problems after upgrade to NW 7.1

It seems that we are experiencing som LTO instability after upgrading
from Networker 6.1.x to 7.1.x.
It seems as if after the upgrade we are getting very sporadic tape I/O
errors that are causing premature tape closure. We have tried to disable
CDI but that did not realy solve the problem.
I wonder if any of you have seen such problems and could recommend a
procedure to solve the problem.
Itzik
 


************************************************************************
**************************
The contents of this email and any attachments are confidential.
It is intended for the named recipient(s) only.
If you have received this email in error please notify the system
manager or  the sender immediately and do not disclose the contents to
any one or make copies.

MBI - System Team
************************************************************************
**************************

--
Note: To sign off this list, send a "signoff networker" command via
email to listserv AT listmail.temple DOT edu or visit the list's Web site at
http://listmail.temple.edu/archives/networker.html where you can also
view and post messages to the list.
=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=

--
Note: To sign off this list, send a "signoff networker" command via
email to listserv AT listmail.temple DOT edu or visit the list's Web site at
http://listmail.temple.edu/archives/networker.html where you can also
view and post messages to the list.
=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=

--
Note: To sign off this list, send a "signoff networker" command via email
to listserv AT listmail.temple DOT edu or visit the list's Web site at
http://listmail.temple.edu/archives/networker.html where you can
also view and post messages to the list.
=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=