I'm trying to determine where my bottleneck is as I'm seeing some very poor performance when doing a Storage vMotion migration (migrating VM's to a different host and datastore) between my 2 ESXi hosts. I don't believe it's a networking issue based on the following:
I've tried dual NIC vMotion and I've tried just limiting the transfers to using a single one of my 10Gb NICs (tried both) on each server to no avail.
What else should I be looking at?
- iperf between hosts via the vMotion IPs (separate vlan from management) is 9Gbps+
- While overall the transfers are very slow, there are rare (usually towards the end) bursts over 8Gbps.
- Copying files from one VM on one host, to another VM on another host is over 400MB/s
I've tried dual NIC vMotion and I've tried just limiting the transfers to using a single one of my 10Gb NICs (tried both) on each server to no avail.
What else should I be looking at?