I'm reasonably sure i'm ok to do this, but I would love some confirmation.
Simple question, can I have two LUNs from the same SAN attached to the same server?
More detail:
I have a HP MSA2000 SAN, connecting to multiple Win 2008 R2 servers over iSCSI with MPIO. Each server connects to a single LUN, using Windows native iSCSI connection.
Can I remove the LUN from server A and attach it to Server B without setting up a new iSCSI connection? My main concern would if the original LUN connected to Server B got upset about this new LUN encroaching on its territory.
Just to be clear, i'm not concerned about moving the original LUN from Server A – I know it's not best practice, but i've done it before and we have a good backup of the data.
Any help greatly appreciated!
thanks,
Ross
edit: I meant to say, these LUNs hold nothing but bog standard data, there's no VMs or SQL or anything else awkward.
Best Answer
Simple answer: yes. This is done all the time - there's nothing preventing multiple LUNs (either FC or iSCSI) from one SAN going to the same server. As an added twist to the simple answer: if you have one LUN going to multiple servers, you will have to ensure you either have only one server mounting it read/write or that you have a multi-initiator capable filesystem on that LUN.