On Thu, Aug 09, 2001 at 10:11:41AM +1000, Lawrence Billson wrote:
Which HBA are you using on 6800? JNI?
What SCSI<->Bridges ?
STK?
> Hi guys,
> I'm getting some pretty poor performance from my Netbackup setup. My
> current system is:
>
> An STK L700 robot with 6 LTO tape units - four of which are connected to a
> fiber/scsi bridge. This is being driven by a Sun E450 running as a media and
> master server. Also connected to my SAN is a 6800 and an E220, these are all
> configured as media servers and SSO has been configured across all systems.
>
> All Sun systems are running Solaris 8. This has been patched with Sun's
> recommended patches. Sun patch 110539-04 (which appears to be a repackaged
> Veritas J0850645a patch) has been installed on everything.
>
> Everything appears to _work_, it's just going unacceptably slowly. We can
> achieve approx. 10Mb/sec to the tape units using ufsdump, when we run stuff
> over netbackup, we get 200kb/sec. It takes a couple of hours to back up a
> 2gb file system:-x
>
>
> I'm 100% sure all data is running over the SAN, I am sure of this as only
> the server I'm backing up has any tape IO activity. I've also run a sniffer
> over the ethernets and there is not a huge amount of traffic between them.
> I've also checked the lights on the SAN switch - only the server running the
> backup and the fibre/scsi gateway's interfaces are active.
>
>
> I was recommended by Veritas to add the following entry into my st.conf
> file:
>
> "SEAGATE ULTRIUM06242-XX","Seagate LTO","SEAGATE_LTO";
> SEAGATE_LTO = 1,0x36,0,0x1d639,4,0x00,0x00,0x00,0x00,1;
>
> This made no difference to my throughput.
>
>
> Anyone got any ideas - defiantly a few beers for information leading to
> resolution of this one.
>
> Cheers -
>
> Lawrence Billson
>
>
>
>
> _________________________________________________________________
> Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp
>
> _______________________________________________
> Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
--
----
Andrew Shinkarev
Network Systems Specialist
Abbott Laboratories
(847) 9387559
shinkara AT pprd.abbott DOT com
|
