Veritas-bu

[Veritas-bu] Tape drive woes

2007-03-14 03:54:56
Subject: [Veritas-bu] Tape drive woes
From: simon.weaver at astrium.eads.net (WEAVER, Simon (external))
Date: Wed, 14 Mar 2007 07:54:56 -0000
Jason
If the firmware has been done, then that is most likely all of your
troubles! I certainly have been down this road before, and took ages to
finally resolve, but it was a case of reconfiguring all the drives again,
and in fact updating the firmware for not just the drives, but the robot as
well (in my case, this solved my problems).
 
Real pain when it happens .... but a relief when its sorted !

Regards

Simon Weaver
3rd Line Technical Support
Windows Domain Administrator 

EADS Astrium Limited, B23AA IM (DCS)
Anchorage Road, Portsmouth, PO3 5PU

Email:  <mailto:Simon.Weaver at Astrium-eads.net> Simon.Weaver at 
Astrium-eads.net

-----Original Message-----
From: Ellis, Jason [mailto:Jason.Ellis at indymacbank.com] 
Sent: 13 March 2007 16:24
To: veritas-bu at mailman.eng.auburn.edu
Subject: [Veritas-bu] Tape drive woes



We have been having some problems with some of our tape drives and believe
to have narrowed it down to a problem with the drives themselves. Our
current environment is a single Master server running Windows 2003
Enterprise SP1 and four Media servers running Windows 2003 Enterprise SP1.
All our servers are running NetBackup 5.1 MP4.

 

About a week ago Sun (STK) was onsite to perform maintenance. As part of the
maintenance they performed testing on our drives and updated the drive
firmware to the latest revision. However, since then a number of our drives
have not been staying up. After spending several days troubleshooting the
issue from an OS and NetBackup perspective we seem to have narrowed the
problem down the drives. The behavior is that we can UP the drives in
NetBackup and they will stay up until NetBackup attempts to mount a tape and
run a backup job to the drive. These drives are shared among two Media
servers, and it seems that the device host they go DOWN on is consistent
with the Media server that initiates the backup job to the drive.

 

Looking through the Application Event Log I've noticed the following errors:

 

1.      TLD(0) drive 18 (device 9) is being DOWNED, status: Unable to open
drive 

2.      TLD(0) drive 15 (device 7) is being DOWNED, status: Unable to SCSI
unload drive 

3.      TLD(0) drive 19 (device 10) is being DOWNED, status: Drive does not
exist in robot 

 

Number two looks like a problem with the drive itself, however numbers one
and three almost looking more like a device path problem within Netbackup or
Windows.

 

In Device Manager we can see the proper number of drives and all the drives
have the proper VERITAS drivers installed. Additionally running a
'tpautoconf -t' and a 'scan' will show the proper number of drives. We also
double-checked the SSO configuration and corrected a few errors, but this
did not seem to have an effect on the problem.

 

Has anybody else seen anything like this before? If you need more
information on our environment let me know. Thank you in advanced for any
help you can provide.

 

Jason Ellis
Technical Consultant, Data Protection Team
IndyMac Bank, La Mirada Datacenter
Phone: (714) 520-3414
Mobile: (714) 889-8734

 



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