Re: [CentOS] Help setting up multipathing on CentOS 4.7 to an Equallogic iSCSI target

2009/3/13 Ross Walker rswwalker@gmail.com:

With open-iscsi you will need to use multiple iSCSI sessions over different subnets and dm-multipath. Configure 2 portal addresses one in each subnet. If Equalogics sets the SCSI Ids correctly then dm- multipath will match them up. Set a round-robin policy on the paths and test/tune accordingly (path delays, # blocks per path, etc).

I have tried using separate subnets on the different interfaces on the Equallogic box and host - but the client host would still only find the volume once.

I've now heard back from Dell - and it appears it can't be done with the software initiator on CentOS4/RHEL4 - but should work with CentOS5

Thanks

James