I have a 4 Node Cluster using Hyper V and 2008 server. There are two SAN Storage servers. I opened my taskmanger and put it on the network traffic. I logged into each node. I copied a 7GB VM onto the desktop. I did this from each node. All 4 nodes have 2 two iSCSI connections via gigabit network connecting to the san using MPIO. San Has 4 iscsi ports.
On each node I could see the VM copied at about 110mbs and averaged 47% activity on each iSCSI connection.
1. Is that normal? When i only use one Nic it averages 97% and the same 110mbs. Wouldn't two nics be faster.
Why am not getting 200 mbs?
NOW THE WEIRDNESS
I reversed the test. This time I copied the same VM from each desktop back to the SAN from which it came. I started with Node 1. I had only HEARTBEAT activity and no iSCSI activity on Node 1. When I looked at Node 4, it had a ton of HEARTBEAT activity and the two iscsi ports lit up and they seem to be doing the work.
1. Why is this happening? I thought the heartbeat was for live migration only. Why didn't node 1 iSCSI ports copy the VM from its own desktop straight to the san. Why did it take the VM from its desktop send it to node 4 through the heartbeat nic to where node 4 used it's iSCSI port to copy it back to the SAN?
Also i noticed heartbeats were at 92% activity but iscsi again was split 50/50.
This time my HEARTBEAT Nic had all the activity and there was no iscsi traffic.
1 and 2. Yes as you have not indicated that you have a real load balancing network setup. A single TCP converstaion will go through the same ports because there are rules in place, like using the first
This article offers some helpful and general tips for safe browsing and online shopping. It offers simple and manageable procedures that help to ensure the safety of one's personal information and the security of any devices.
This tutorial will walk an individual through locating and launching the BEUtility application and how to execute it on the appropriate database.
Log onto the server running the Backup Exec database. In a larger environment, this would generally be …
This tutorial will walk an individual through setting the global and backup job media overwrite and protection periods in Backup Exec 2012.
Log onto the Backup Exec Central Administration Server. Examine the services. If all or most of them are stop…