Volume Replication

[lk-ooe]

Hello,

I have two Servers with failover configuration:

1 Volume replication Nic
4 Nics Bond0
1 Nic for Web-Access

With IOMeter i have an write-io of 110 MB, but when i make a manually failover and only one Server is active, i have a write-io of 220 MB.

Is the bandwidth for replication limited to one Nic? Is it possible to add a second nic for replication to increase the bandwidth for replication?

[salmon]

Currently all replication tasks use only one NIC but You can create bonding and run replication on it.

[lk-ooe]

Thank you for the Tip.

I have create a blance-rr bond for the Volume Replication with two Nics, but this does not increase the throughput, the write-io with active replication is is still at 110 MB.

[salmon]

During creation of volume replication task you can set option: " Bandwidth for SyncSource (MB)". By default it's set to 40 MB. To change this value you have to delete this task and create it again.

[lk-ooe]

There is a knowledgebase article: Why Open-E request to specify bandwidth value for volume replication? http://kb.open-e.com/Why-Open-E-requ...ation_172.html

"Once the destination volume show consistent, replication will use maximum possible bandwidth."

So the Option "Bandwidth for SyncSource" should not impact the Bandwidth, when the Volume is consistent.

[salmon]

hmm, I didn't know that.

Ok, could you try one more thing? Shutdown secondary machine and see if speed will also increase to 220 MB.