Help me out with a couple of questions when testing SAN iSCSI Performance with IOMeter.
1. Does my test VM need to have NIC in iSCSI network? Right now my VM is connected only to my LAN network.
2. I've attached a RAW mapped LUN as a hard disk to my test VM through vSphere. There are no other VM's in that LUN. Is this all I need?
3.I've tested performance with;
Max Throughput 100% read. I used 32KB blocks, 100% read actions and 100% sequential way. Outstanding IO's 16.
Here is the result:
Test name Latency Avg iops Avg MBps cpu load
Max Throughput 2.28 6736 210 29%
I know I'm missing all the important information to that result to be a comparable, but I need to understand the important things first to keep going. But my ESXi is using 4x1GBps NIC's in iSCSI with Multipathing enabled. So am I using all that bandwith with my current configuration?
What are the values I should be expecting when iSCSI is used with 4x1GBps all the way (also my SAN) and configured with best practices? Should it be near 400MBps? Or is something like my 210MBps fine?
