Quote Originally Posted by nsc
I aggree with the fact that replication must not impact read performance.

My ESXi 4 is in MPIO support RR Vmware : i see activity on my two ETH for iISCSI traffic (but may it's not working...)

So what is your teaming mode in DSS to get 170Mb / s in read ?

I tried Balance-RR (lower read performance) and Balance ALB.

What is yours ?
bonding between client and dss? what for? mpio does it for me.
for an example: dss with 2x ge ports,
port A with 10.0.0.1/24 connected to switch A
port B with 10.0.1.1/24 connected to switch B
now client (xen in this case) also have 2ge ports, which are connected to switch A and B, this way each of the port is seperate from the other one and in its own network, for the 'balancing' i setup a iscsi connection to each of the network (10.0.0.1 and 10.0.1.1) and put mpio over it to balance the io requests (change path every 4io requests) - this way im getting about 170MB/s read