iSCSI Slow? I Think Not
May 22nd, 2008 @ 1:36 am
People love to talk bad about iSCSI, especially “Those Other SAN Vendors” (ie: The Fibre Channel People). I’ve had a couple of vendors tell me iSCSI is not an enterprise solution and I’d never see over 250Mbps of throughput. I love proving them wrong.
Check out the images below. Note that the two transfers below were happening SIMULTANEOUSLY to a single Equallogic PS300 SAN. That’s a combined throughput of 1.06Gbps! iSCSI rocks! The key is the network really. High-end switches with big port buffers, jumbo frames, and flow control are a must.






What is your network layout between the servers and san ? what switching hardware you using?
Any info would be greate
Comment by Customer X Factor — May 22, 2008 @ 10:01 am
Hi Derek, Marc Farley from Dell EqualLogic here. What switch(es) are you using?
Comment by marc farley — May 23, 2008 @ 10:12 am
We are using a Cisco Catalyst 6506 switch. I posted another update at http://www.derekschwab.com/2008/05/networking-for-iscsi.html with more details on the switch hardware.
Comment by Derek — June 7, 2008 @ 1:34 pm