If it's the card I'm thinking about the TCP checksum is already offload to hardware. In fact most gigaswift cards support this today with 1 Gbit technology.
I think a great deal of tuning would be required to achieve anywhere near 10 GB w/ a single TCP stream. Regards Peter Marelas -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Curtis Preston Sent: Friday, 24 August 2007 3:43 PM To: Dominik Pietrzykowski; veritas-bu@mailman.eng.auburn.edu Subject: Re: [Veritas-bu] 10GB network + perf questions etc Check out my blog entry on this topic: http://www.backupcentral.com/content/view/133/47/ I just spent some time today with some REALLY smart folks who were using Intel's 10 GbE NICs with Sun 6900s and Solaris 10. They can do about 250 MB/s and have the box still function. They can get it up to 400 MB/s, but when they do that, the box won't respond. They couldn't run top, they can't login, they can't run ps, etc -- NOTHING. So I'm thinking that with Solaris, you're not going to get anywhere near 10,000 Mb/s (1200 MB/s). Maybe with Linux or Windows and a TOE (TCP offload engine) NIC, you might have a chance. (I only say those OSs because that's where they're making TOE NICs.) One vendor replied to my blog post and I'm looking into it. --- W. Curtis Preston Backup Blog @ www.backupcentral.com VP Data Protection, GlassHouse Technologies -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dominik Pietrzykowski Sent: Monday, August 13, 2007 4:42 PM To: veritas-bu@mailman.eng.auburn.edu Subject: [Veritas-bu] 10GB network + perf questions etc Hi Group, Just curious to know if anyone is using 10GB network (fibre/copper, is copper available yet at 10GB ???) on their media servers or clients and what sort of data transfer rates are they getting ??? I'm waiting for my 10GB blade for the switch to come from the US, it's taking ages !!!! Also, are you using Solaris or windows on these ??? What's the best you've seen on 100MB and 1GB copper/fibre networks ??? What data rates are you seeing via HBAs 2/4GB ???? Are you using standard backup method or flashbackup ? I've played around with flash and on a server with about 4.7TB of small files, I have gone from 10MB/s -> 70MB/s. It's a V490 Thanks in advance, Dominik _______________________________________________ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu _______________________________________________ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu _______________________________________________ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
