Re: [Veritas-bu] External event caused rewind during write.

2008-03-10 Thread Forester, Jack L
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: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jeff
Lightner
Sent: Monday, March 10, 2008 11:27 AM
To: Justin Piszcz; veritas-bu@mailman.eng.auburn.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: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Justin
Piszcz
Sent: Monday, March 10, 2008 6:33 AM
To: veritas-bu@mailman.eng.auburn.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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Re: [Veritas-bu] External event caused rewind during write.

2008-03-10 Thread Justin Piszcz


On Mon, 10 Mar 2008, Jeff Lightner wrote:

> 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.
Nasty problem, thanks for the heads up!

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Re: [Veritas-bu] External event caused rewind during write.

2008-03-10 Thread Jeff Lightner
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: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Justin
Piszcz
Sent: Monday, March 10, 2008 6:33 AM
To: veritas-bu@mailman.eng.auburn.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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the contents of this information is prohibited and may be unlawful. If you have 
received this electronic transmission in error, please reply immediately to the 
sender that you have received the message in error, and delete it. Thank you.
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[Veritas-bu] External event caused rewind during write.

2008-03-10 Thread Justin Piszcz
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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