The PCI bus on a P5 will saturate at 400 MB/Sec; you'll need to go to
the P6 to exceed that. That, and the $8,000  per end cost are the
reasons I have 4 independent gigabit backup networks. (At the lat time I
looked, the IBM card was $8,000 and a populated 8-port board for our
Cisco switch was $64,000, with the per-port cost getting uglier as you
cut the ports down).

Tom Kauffman
NIBCO, Inc

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Curtis Preston
Sent: Thursday, October 18, 2007 8:44 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: 7500 Mb/s on 10 GbE!

The reason I posted this is that up to now, I've never seen anyone go
any faster than about 400 MB/s (3200 Mb/s).  If you're able to test that
you can go indeed go anywhere near the speed that this guy had, using
your P5s of course, I'd love to post your results, too.

I'm just trying to help get the backup community beyond the 100 MB/s
barrier we've been at for a while.

---
W. Curtis Preston
Backup Blog @ www.backupcentral.com
VP Data Protection, GlassHouse Technologies 

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Bob Booth
Sent: Thursday, October 18, 2007 4:40 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] 7500 Mb/s on 10 GbE!

On Thu, Oct 18, 2007 at 07:00:29PM -0400, Curtis Preston wrote:
> I monitor several backup-related mailing lists, and a user on another
> list is getting 7500 Mb/s on his 10 GbE card and was willing to share
> how he did it.

We don't have a back to back 10Gb connection, but we do have 3 1Gb
servers
going into a foundry switch, which has a private 10Gb connection to our
TSM
server.  We achieve 1590Mb/sec.  6 TSM image backups streaming, two from
each server, going directly to 3592 drives.  P5 - 570 TSM server, does
not
break a sweat, and I'm sure more is possible.

>
>
>
> It's a NetBackup user, but that's not what the post is about.  It's
> about how he got 7500 MB/s into a single backup server, and how he did
> it is just as relevant to TSM users:
>
> http://www.backupcentral.com/content/view/146/47/
>
>
>
> Has anyone accomplished this kind of throughput on other platforms?
> (He's using Sun Solaris.)
>
>
>
> ---
>
> W. Curtis Preston
>
> Backup Blog @ www.backupcentral.com
>
> VP Data Protection, GlassHouse Technologies
>
>
>
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