[Veritas-bu] Bad image header.
Anthony.Soprano at Home.Com
Thu Oct 18 18:50:08 CDT 2001
I have seen header corruption on an NT 4.0 Sp 6 master running 3.4 J645. It
is unclear how it started, but DEBUGGING was on. There were image header
files with corrupted characters in the file names (non standard characters).
Check disk would fix things (sort of), but it would reappear daily.
We got a new array and formatted it and moved the data, minus the corrupt
images. It is stable now.
The only other software on the machine was pcanywhere and NBU Adv. Reprtr.
From: veritas-bu-admin at mailman.eng.auburn.edu
[mailto:veritas-bu-admin at mailman.eng.auburn.edu]On Behalf Of Larry
Sent: Thursday, October 18, 2001 1:29 PM
To: Sixbury, Dan
Cc: EBU (E-mail)
Subject: Re: [Veritas-bu] Bad image header.
You probably can't restore from them anyway. What normally happens is
that the header file is opened and then something happens, it could be
fs full, it could be the machine is rebooted, etc. Anyway, you end up
with a header file which is 0 length.
The backup itself would have almost definitely failed. I don't know
if you could import a failed backup. It should still be there (at
least most of it), since it's multiplexed in with other images it
wouldn't have been written over (depending on the event that happened
of course, I'm assuming some event which only kills one of N which are
Sixbury, Dan writes:
> I recently found numerous messages about bad image header for backups that
> have been running. I checked the knowledge base for infomation and it
> that this was related to the file system filling up, the image database
> files becoming corrupt and needing to be removed.
> 1. Does this mean that after you remove these files that it is impossible
> to recover the backups? Multiplexing is used, so tar cannot be used to
> directly from the tape.
> 2. The file system that these files reside in is not 100% full, yet we
> still getting this same error. What else would cause these errors?
> Veritas-bu maillist - Veritas-bu at mailman.eng.auburn.edu
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