Veritas-bu

[Veritas-bu] PC NetBackup OTM problem

2002-04-10 13:20:54
Subject: [Veritas-bu] PC NetBackup OTM problem
From: paulg AT CDCNA DOT COM (Paul Gimpelev)
Date: Wed, 10 Apr 2002 13:20:54 -0400
Ken,

        I do not really understand your point about a virtual drive.  I don't
think OTM creates any drives, it just uses existing drives for caching.  As far
as I know OTM does not back up it's own cache files, but I could be wrong
there.

paulg

On Apr 10, 11:26am, Young, Ken wrote:
> Subject: [Veritas-bu] PC NetBackup OTM problem
> I'm having a problem with OTM and the way we have our backup file list
> configured.
>
> Here's the situation:
>
> Using NB 3.2 and greater, our PC clients have OTM enabled and the backup
> file list on the Solaris server specifies something like this:
>
> c:\Documents and Settings\
> c:\WINNT\Profiles\
> c:\my_documents\
> c:\projects\
> c:\Userdata\
> c:\my documents\
> d:\Userdata\
> d:\my documents\
> e:\Userdata\
> e:\my documents\
> f:\Userdata\
> f:\my documents\
> g:\Userdata\
> g:\my documents\
>
> However, if your PC is configured like this:
>
> C:\ - fixed partition
> D:\ - fixed partition
> E:\ - cd rom
> F:\ - cd burner
>
> OTM creates a virtual drive G:\ for its cached files and since G:\ is listed
> on our backup file list, the virtual drive gets backed up too! The virtual
> drive does get deleted once the backup is complete.
>
> How to fix it? This gets a bit interesting ...
>
> 1) Disable OTM - no a really good option since open files will not get
> backed up.
>
> 2) Create separate class lists based on the number of partitions on each of
> our clients. Therefore, if a PC only has a C:\, then only create a class
> specifying only C:\ folders in the backup file list and if a PC has a C:\
> and D:\, only specify C:\ and D:\ folders in the backup file list - an admin
> nightmare but might be the best solution.
>
> 3) Instead of listing all the files for backup on the master server, only
> list "all_local_drives" parameter and create custom exclude and include
> lists on each client. - more admin work than #2 and we will lose control of
> the file list unless we can lock down the exclude and include tab on each
> client.
>
> Therefore, we are using more tapes than needed and backing up duplicate info
> ... Not sure if this happens with all OTM enabled clients but I've seen
> enough of this to know that our tape usage would be reduced if this is
> fixed. This problem is Windows independent as I've seen it happen on Win9x,
> NT4, and Win2K.
>
> Therefore, I would like to know how other companies configure their backup
> policies in relation to the file list?
>
>
> Thanks,
> Ken Young
> Texas Instruments Inc.
> (214) 567-5016
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>-- End of excerpt from Young, Ken



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