Windows 2003 server and NTbackup catalogs

maharlika
maharlika used Ask the Experts™
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I've got two Windows 2003 servers, both are domain controllers.  One is rapidly filling up the c drive under the folder c:\documents and settings\all users\microsoft\windowsNT\ntbackup\catalogs51  It has a bunch of files with V01 extension, dating back to the time when we originally installed the server.  the other server only has one file in this folder.  I'm concerned that the C drive is running out of space, and would like to know what these .V01 files are for and if it's ok to delete them.
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Commented:
Hi,

From Egghead:  "The .v01 extension identifies catalog files created by the Windows Backup
utility.  These catalog files store details of the directory structure and filenames
and are saved along with the backup file itself.."

Have you opened up your NTbackup utility and checked to see what and where it is backing things up to?  You should also look at the scheduled tasks as this is where the NTBackup utility will schedule its tasks to actually run the backup.  I would suggest that you change it to point somewhere else by modifying the job that it is using (probably under c:\documents and settings\username\local settings\application data\microsoft\Windows NT\NTBackup\Data  (Also check the path that you entered above for a .bks file.  

You can get rid of these files as they are the physical backup files that can be loaded if any files are damaged.  If you lose the system then you will lose those file backups as well.

HTH

Commented:
I'm sorry, I misspoke, as this states, these files are the catalog files that index the backup files themselves.  If you just have the backup files then a catalog file would have to be regenerated, re-indexed, etc.

Personally, if you don't care what gets backed up on this system then I would ditch the files and ENSURE that it isn't running on a schedule under task manager.  (C:\Windows\tasks)

Thanks

Author

Commented:
I backup the files to tape using ntbackup.  So if I delete these v01 files, I can still restore files from the tape, correct?
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Commented:
Hi, I apologize.  I thought you were talking about files that were from some previous installation or backup.

No, if you want to restore then you need to keep these catalog files.  You should move them to a safe place or limit the amount that get stored.

Here is how you move them from their default location:
http://support.microsoft.com//kb/241162

And here is how to maintain them with some more info:
http://support.microsoft.com//kb/249120

They are for Win2k, but the concept is the same for 2k3.

HTH

Commented:
Hi,

I just ran across this link below and here is an extract:

"You can delete this files but that implies that, whenever you need to
restore you have to re-catalogue the disk every time (Which is what I was saying...), so having them on the hard drive speeds up restores but isn't necessary. You can just remove the
others and only left the latest one you currently use."

It also shows how to delete the catalog files within your NTbackup script.

http://microsoft-server-operating-systems.hostweb.com/TopicMessages/microsoft.public.windows.server.sbs/1913485/1/Default.aspx

HTH

Author

Commented:
Thanks, Mightsw, great answer and very helpful

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