This is a prime situation for Flashbackup, an extension to NetBackup.
Raw device backup via VxFS filesystem snapshot.  Full inode index,
so you can do individual file restores or full raw partition restore.
Worked great on 550GB 57M inode filesystem -- took about 10 hours. :)
You should be able to get it done in ~2 hours...

Ask your friendly Sales Rep about it...

Todd

On Tue, May 16, 2000 at 11:50:41AM +0000, George Roper wrote:
> How does NBU perform when asked to backup a lot of small files within the 
> same filesystem?
> 
> I have need to backup 1,600,000 files averaging 2-3k each - total of 30GB of 
> data. My backup to a single DLT7000 tape unit currently takes ~50 hours.
> 
> Theorectically if the system were able to drive the DLT at 5MB/s this should 
> take 100 minutes. NBU obviously has lots of overhead when recording to the 
> Files Database each of these 1,600,000 files. Also the backup process must 
> slow when walking the directory to determine what file to backup next.
> 
> Before I start tuning this environment I would like to know what is a 
> reasonable backup window to expect.
> 
> Anyone any experience or observations?
> 
> George
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