Host Port Layout
Posted: Thu Jun 19, 2014 9:35 am
Good Morning UG!
I wanted to get some feedback on how folks are laying out their host ports connections. There has been some discussions on exactly the best way to layout out host ports on our 8-node V800. So original setup that was carried over from a large S800 design was to split node pairs per fabric. For example here is our current layout spread across node pairs:
0:1:1 & 1:1:1 Fabric 1
2:1:2 & 3:1:2 Fabric 2
We had an HP resource come in and say that this was wrong. So the trainer stated that best practice is to keep the host completely on node pairs instead of spliting. So the example the correct way would be:
0:1:1 & 1:1:1 Fabric 1
0:1:2 & 1:1:2 Fabric 2
The explaination was that you keep the I/O contained to the single node pair. In theroy it makes sense but just wanted to see what everyone else is doing. It's a large configuration change. Also asked for this somewhere in documentation from HP and they haven't provided. In the latest best practices it only goes as far as 4-node and doesn't specifically say zone to one node pair just that the partner port should be used.
TIA,
JD
I wanted to get some feedback on how folks are laying out their host ports connections. There has been some discussions on exactly the best way to layout out host ports on our 8-node V800. So original setup that was carried over from a large S800 design was to split node pairs per fabric. For example here is our current layout spread across node pairs:
0:1:1 & 1:1:1 Fabric 1
2:1:2 & 3:1:2 Fabric 2
We had an HP resource come in and say that this was wrong. So the trainer stated that best practice is to keep the host completely on node pairs instead of spliting. So the example the correct way would be:
0:1:1 & 1:1:1 Fabric 1
0:1:2 & 1:1:2 Fabric 2
The explaination was that you keep the I/O contained to the single node pair. In theroy it makes sense but just wanted to see what everyone else is doing. It's a large configuration change. Also asked for this somewhere in documentation from HP and they haven't provided. In the latest best practices it only goes as far as 4-node and doesn't specifically say zone to one node pair just that the partner port should be used.
TIA,
JD