Best practise: Speed for Volume replication

[OlafDoering]

Hi folks,

i have 2 DSS6, connected with a cross-over-cable at 1GBit for volume replication.

The storage is accessed from 3 XenServer, each with 2x1GB Multipath.

I tested the write performance and got 1GBit, which first got me into thinking, but i understood, the it is a synchronous replication, so the bottleneck in this test was my 1GBit replication connection.

Is it a goog idea, to dedicate 2 NICs, each 1GBit, bonded, to volume replication? Or is it a problem?

tia Olaf

[To-M]

You can have 2 NICs for Volume Replication if needing some path failover but all you really need is 1 NIC and it can be directly connected to the other DSS V6 - this saves on the ports on the switch as well. The bond wont provide better performance with the Volume Replication.

[enealDC]

if you need more speed for replication, you should look into 10GBE. But after the initial sync, 1GBE is pretty good.