Veritas-bu

[Veritas-bu] W2K3 clients / slow backups

2004-05-18 16:15:11
Subject: [Veritas-bu] W2K3 clients / slow backups
From: jon_bousselot AT sd.vrtx DOT com (Jon Bousselot)
Date: Tue, 18 May 2004 13:15:11 -0700
These two suggestions are part of what I did to resolve a bug similar to 
this.

We run Norton, and there is an option to disable virus scanning on 
backup.  I think the menu item is worded exactally like that.  Check 
that box, and CPU time will not be consumed trying to scan files.

The network card was the ultimate problem in our scenario.  We ran W2k 
on this system for a long time, and everything worked fine.  Then we 
upgraded to W2K3, and saw that the fiber gig nic driver was not 
officially available for 2003.  We went with the W2k driver, and backups 
were fine, but the restores would take weeks to finish.  We would get 
good transfers for about 10 minutes, then it would slow to 70KB/sec.  
There were no errors on the Solaris master/media server.  The bug was 
fixed by removing the 3com fiber gig card, and going copper gig.  The 
veritas technician who helped me said the Broadcom cards built into Dell 
servers have been problematic for them, and I might experience continued 
difficulty.  So far... so good.  I get the throughput you would expect 
from a large NTFS filesystem, and having 2.4GHz of cpu power on the 
client helps greatly.

It should have been obvious to us when there was no supported driver for 
this 3com card. 

-Jon


>May sound dumb, but sometimes when we have updated a Windows Client then 
>reboot the NIC went from Full/Duplex backup To Auto.  Also check for 
>anti-virus running on outbound files....
>
>Good Luck
>
>-----Original Message-----
>From: veritas-bu-admin AT mailman.eng.auburn DOT edu
>[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu]On Behalf Of Kevin
>Freels
>Sent: Tuesday, May 18, 2004 2:23 PM
>To: veritas-bu AT mailman.eng.auburn DOT edu
>Subject: [Veritas-bu] W2K3 clients / slow backups
>
>
>Greetings!
>
>I searched the archives, but couldn't find an answer to this. I'm sure
>someone else must have gone through this, tho.
>
>We're running NB4.5_FP6 on a Sun Ultra-250. I just installed the
>W2K3_FP6 client on a W2K3 system, but the backups are *extremely* slow.
>They start out as 5Mb/sec, but within a couple hours, it's slowed down
>to a paltry 50Kb/sec or less according to the detailed status. After 16
>hours, it's only at 3,000 files and about 4.5Gb of backed up data.  At
>the rate it's going, a full backup (+/- 60Gb) will take *weeks*, not
>hours.
>
>I am backing up the System_State and one of the drives, with a few
>excludes on the drive.
>
>The server itself doesn't seem to be overloaded, no processes are really
>that dominant, and the load is under .25 for the most part. I suspect it
>might be a config issue beyond the default settings in the Win box, but
>I have yet to find anything to outline better settings or things to try.
>
>Any help/answers/clues would be *greatly* appreciated!!! Thanks in
>advance!
>
>....k
>-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-
>Kevin Freels                         kfreels AT askjeeves DOT com
>Senior UNIX SysAdmin                          510.985.7444
>Ask Jeeves                                         ask.com
>"We keep you alive to serve this ship. Row well and live."
>
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