Replicated LUNs and independent LUNs within a DSS Cluster

[cneri]

Hi,

Is it possible in a Replicated scenario with failover and MPIO (with ESXi 4.1 in iSCSI)

(like this : http://documents.open-e.com/Open-E_D..._XenServer.pdf)

to have both Replicated LUNs et non-replicating LUNs (independant on each array).

May i have to configure 2 VMkernels by card on my ESXi to be able to contact both direct array IPs and Virtual IPs ?

Is there a better way to do this ?

I'm planning also to setup a 4 paths MPIO network. Is there any recommandation with this ?

Thanks

[Al-S]

For MPIO, please find the more info at our webcaset and videos:
http://www.open-e.com/library/webcasts-and-videos/
Open-E DSS V6 MPIO with VMware ESX4

[cneri]

Ok thanks, i've already saw this video but the demo is a 2 paths MPIO. My question is, is there any additionals things to take care with 4 paths ?

But the main question of the post is about combining replicated LUNs and independant LUNs in a 2 nodes DSS cluster.

Thanks

[To-M]

We have only tested with 2 NICs but this would depend on the initiator side to add more NICs for the MPIO.

For the Auto Failover the Primary server will need to set the volumes in Source mode and the Secondary server set them in Destination mode and you cannot mix them if using the Auto Failover. Though you can use it in such a way to mix them just using the Volume replication function only.

[cneri]

Ok thanks and in the case of using different Volumes instead of different Luns wil that do the trick ?
(1 volume source/destination, 1 volume independant).

[To-M]

The iSCSI Volumes dont have to be in used for Replication so they can be accessed is not assigned with replication.