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New Member

My <5% Utilized Gig Network Is Slow!!!!! I Fear The SAN Wants My Job.

I've got Gig everywhere and a 6500 switch. Production managers constantly complain to the CEO that the "network" is slow. I've looked at everything and 5% is about the max utilization other than the link from the switch to the SAN which bursts close to a gig at times (after a prolonged period of near inactivity). Does anyone know how I can determine the throughput of the SAN? Or even a rough estimate of the capability of a SAN would be great. (Please don't delay in your response. After I lose my job I may not have access here anymore). Thanks Much.

New Member

Re: My <5% Utilized Gig Network Is Slow!!!!! I Fear The SAN Want

In my humble opinion, you need to get ahold of some network monitoring software such as Ciscoworks. I would contact the TAC, describe your problem, and ask for suggestions. Most, if not all, Cisco offices will also let you come to their lab to demo hardware/software. The folks at our regional office have never been anything but helpful when I've contacted the.

What is the setup of your 6500? I believe, with the proper configuration, the max throughput on the 6500 backplane is 256Gbps.

I would also look at the servers that are being backed up during the periods of increased activity. Doing a backup can place a heavy burden on some servers, especially with a SAN, because most SANs aren't going to have a problem keeping up with your server. This means that your server keeps sending data as fast as it can, while it still has to perform its regular duties.

Just a couple of things to look at. Good luck.