I've seen the external event message before here, and it was due to SCSI
reserve not being set on the drive, allowing another host to send
commands to the drive while the backup was being written to the tape.
But this was back in the 3.4 days.
Jack L. Forester, Jr.
UNIX Systems Administrator, Stf
Lockheed Martin Information Technology
(304) 625-3946
-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Jeff
Lightner
Sent: Monday, March 10, 2008 11:27 AM
To: Justin Piszcz; veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] External event caused rewind during write.
We've seen it and it appears to be the drive itself (LTO-1/Ultrium).
FYI: This corrupts the backup so when you try to restore later it will
give you messages about bad tar headers. Do NOT rely on this backup
even if you later see 0 exit status.
We even had one drive that it appeared it corrupted EXISTING backups on
a tape when it mounted it and experienced this issue. It appears the
vendor actually sent the drive back to us without correcting this
behavior so we had to send it back. We now record the Serial Number and
problem for all drives we send back so we'll know if we get a
refurbished drive back later and experience the same problem we'll be
able to gig the support vendor.
-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Justin
Piszcz
Sent: Monday, March 10, 2008 6:33 AM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] External event caused rewind during write.
1204936626 1 132 16 media-server-name 2429907 2429907 0 client-name bptm
FREEZING media id CA1234, External event caused rewind during write, all
data on media is lost
Anyone ever seen this before? What is this usually caused by, bad/old
media, or?
Justin.
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