Hi Alon,

If this is going to be any type of production system, I would defer to the Netapp Compatibility Matrix Database online at:

http://now.netapp.com/matrix/mtx/login.do

If you choose Sun Solaris 9, and your HBA, and iSCSI, all the returned rows say NO to multipathing.   However I am new to the matrix database so please try for yourself.

Also what’s interesting is if I look at all iSCSI and Solaris, I see multipathing is supported for Solaris 10 not with IPMP, but with MPxIO instead.  So there is definitely a gap somewhere in the information at hand.  When you said it is possible to get IPMP to handle failover, was this a previously supported config, or it just “worked”?  Actually if I refer to http://docs.sun.com/app/docs/doc/817-5093/fncpc?a=view it says IPMP and MPxIO work together, is that how you did it? 

- Hadrian

From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Alon Zeltser
Sent: Wednesday, July 30, 2008 3:46 AM
To: toasters@mathworks.com
Subject: Solaris 9 Iscsi HBA failover question

Hello Toasters
I'm going to implement Iscsi network on solaris 9 machine and FAS2020 cluster
As you know iscsi software initiator is available only on solaris 10
and it's possible to achieve failover in with IPMP and software initiator
since i will be using solaris 9 machine i need hardware initiator in my case i will be using  2 qla4010c
is it possible to achieve redundancy at the host side ( HBA failover \ multipathing) in this configuration
if so how ?


Thanks

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