Forgot to mention: run the script when no backups or restores are in
progress.
Neil
------ Forwarded Message
From: "Conner, Neil" <n...@mbari.org>
Date: Thu, 23 Apr 2009 16:55:19 -0700
To: Veritas List <veritas-bu@mailman.eng.auburn.edu>
Conversation: Corrupt header files
Subject: [Veritas-bu] Corrupt header files
Netbackup 6.0 MP5 on Solaris 10.
I was working with support and they had me edit some header files and I
happened to stumble upon one that had some corruption in it: I got the
following error when I opened it with vi:
"client_1212199228_FULL" [Incomplete last line]
I found that an extra line of white space had been tacked on at the bottom
of the file, but it was missing the EOL character. So I wrote a script to
look for more occurrences and I was shocked to find that over a third of my
header files have this extra garbage line in them, and they are still being
created. I¹ve got over 13,000 corrupt header files for full backups alone.
Restores from the corrupt header files are successful, with or without the
extra line of garbage (which is why it has gone undetected until now). At
this point, support is telling me to either live with it or fix all the
corrupt files, but so far at least, they have not tried to address the root
cause and I¹m not satisfied with that. So I¹m wondering if anyone else has
a similar issue.
Here is the script (it only samples full backups so it runs faster). Update
the path to the image database if necessary and you can run it from
anywhere.
#!/bin/ksh
#
# Check for corrupt header files:
# These will have white space at the end of a line.
# grep l (ell) produces a list of files instead of a bunch of white space.
#
ImageDB=/usr/openv/netbackup/db/images
for DIR in `ls -R | find $ImageDB -type d`
do
grep -l " \$" $DIR/*FULL 2>/dev/null
done
I¹d be grateful if some of you would run this against your catalog. If you
get any hits, try to edit one of the files and see if you get an ³Incomplete
last line² error.
Thanks,
Neil
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