On Storage
Storage news for pros
Feb 01 2006
ISCSI vs. FC performance A closer look
Posted by in NAS, SAN, Technology
ISCSI vs. FC performance: A closer look:
What weighs more: one pound of bricks or one pound of Feathers? Which is faster: 2 Gb FC or 1 Gb Ethernet? Hint: Both questions have the same answer.
A very interesting post from Tony Asaro. I haven't yet had any experience with iSCSI, so I'm really not in a position to have much of an opinion. My git tells me that iSCSI will inherently have more latency than fibre – simply because you're passing a disk control protocol over a networking protocol, rather than over the bare metal/silicon.
Of course, I'm open to be proven wrong – and quite look forward to playing with this tech at some point…
September 10th, 2007 at 12:03 pm
I am having trouble with article as well. First, using TOE capability is limited to a Windows OS and not available for Linux. Must customer’s looking to deploy FC and now using 4 GB HBA’s not 2 GB as compared in the article. Next there is no discuss with the affect of all TCP/IP traffic on the customer’s existing IP switches or the fact that FC protocol can run at wire speed vs. TCP with 30% utilization is about all the network traffic that can be tolorated without a great deal of resends.