08-07-2008 07:14 AM
I've been monitoring the performance of my MDS 9124 FC switch and have some concerns. The transmission rates are peaking at over 700 MB/s when the port is only rated at 400 MB/s on the 4Gb switch. Is this normal or does it indicate a problem?
08-07-2008 09:47 AM
That doesn't sound right to me....on a single port, the through put should max at 400MB. You not looking at a port-channel by any chance are you? Sounds like it might be reporting a combination of 350MB ingress and 350MB egress.
08-07-2008 10:13 AM
08-07-2008 05:23 PM
Check to see if the counters are in 64bit, I have seen 32 bit counter wrap to graph the data and give readings like this.
From memory the mrtg cfg file needed to have something like this
Target[10.50.45.34_fc1_1]: #fc1/1:public@10.50.45.34:::::2
by default I the configuration file had
Target[10.50.45.34_fc1_1]: #fc1/1:public@10.50.45.34
08-07-2008 08:18 PM
I would suggest opening a case with Cisco TAC, or your MDS support provider and request it be investigated. I believe it's cosmetic...and I would use the command line to monitor the situation.
08-19-2008 05:15 AM
Excluding FM out of the equation what performance do you see from CLI?
Use
sh int fcx/x count br
If this also shows 700MB/s then it is a SAN OS issue not FM.
08-20-2008 05:30 PM
400MB/S is just a average value in 5min .
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