I used the advice from the other email out there about editing the buffers
and I've seen a significant change.  Had a windows box backup 25 GB in
05:16:40 and after changing my buffer number and size it backed up 25 GB in
1:17:40.  A 4 hour difference!  Check out the emails with subject LTO2
maxing out memory.  




-----Original Message-----
From: Ed Wilts [mailto:ewilts AT ewilts DOT org] 
Sent: Monday, March 15, 2004 8:46 PM
To: Kathy Riddlemoser
Cc: List Veritas List
Subject: Re: [Veritas-bu] NBDC 4.5_MP6 Solaris M/M server various clients


On Mon, Mar 15, 2004 at 09:28:33AM -0500, Kathy Riddlemoser wrote:
> I just recently upgraded my Sun E220R from Solaris 7 to Solaris 9 and from
> NBDC 3.4 to 4.5_6.  I am using an Overland LTO (soon to upgrade to LTO2).
> My unix clients average 12-14 MB whereas my windows clients average 4-5
MB.
> Windows backups are 3 times slower.  WHY? 
> 
> My windows 2000 file server with 511 GB storage started backing up on
Friday
> at 13:40:59 and it's elapse time is now (Monday) at 67:41:09 and has only
> backed up 299 GB.  I had a unix box backup 484 GB in 30 hours.  This is
sad.

We've got the same problem but in our case the Windows systems have lots
and lots of little files, whereas the Solaris systems have nice large
databases.  Lots of small files will *always* kill performance, and
there's not much you can do about it.

-- 
Ed Wilts, Mounds View, MN, USA
mailto:ewilts AT ewilts DOT org