Som, I don't think anything needs to be done on the target side unless the target has ALUA capability. It might be helpful to capture a snoop trace from a host side interface showing initiator login and discovery. That should answer the question about the page 83 data.
Also, have you modified scsi_vhci.conf at all? If so can you post that file? Regards, Vic > -----Original Message----- > From: Somnath kotur [mailto:[EMAIL PROTECTED] > Sent: Wednesday, April 02, 2008 2:48 AM > To: Javen Wu > Cc: solaris driver; [email protected] > Subject: Re: [storage-discuss] MPxIO support problems on Solaris 10x86 > > Javen, > Assuming that this is an iscsi target that i have > written/rather have full control over it, how can i make sure > that my iscsi initiator driver or even the 'iscsiadm' > (Solaris's own iscsi initiator) is able to use MPxIO on it? > > I have configured the target to have the same name with 2 > portals, each with different target portal group tags both > presenting the same LUN to the OS thereby providing path redundancy > > I was able to use sendtargets discovery from the > 'iscsiadm',get 2 sessions from both the portals .But found > that instead of creating vHCI based pathinfo nodes ,regular > ndi_dev info nodes were created for BOTH the LUNS ( If MPxIO > worked of course, the paths would be merged and there would > be only one entry > right?) > > I tried adding the 'VID PID' entry in the scsi_vhci.conf > with BOTH symmetric/non-symmetric options but it did not WORK > ( MDI_NOT_SUPPORTED error returned in mdi_pi_online()) > > what needs to be done from the target pt of view to indicate > MPxIO support? > > > > > Thanks > Som > > > > > --- Javen Wu <[EMAIL PROTECTED]> wrote: > > > Hi Som, > > > > If your iscsi target doesn't support ALUA, you need check > whether your > > iscsi target can match any one of failover operation types solaris > > supports. Solaris supports asymmetric/symmetric EMC failover > > operation, LSI asymmetric failover operation, sun standard > symmetric > > failover and sun standard asymmetric failover operation, 5 types > > failover operation. > > Except sun standard symmetric failover types (ALUA), other > types match > > fops by vendor ID and product ID. > > If your iscsi target cannot match to any type of failover operation > > set, the mdi_pi_online() always fail. > > So I think you need make sure the type of your iscsi > target, then let > > we see whether you need add your vendorID and product ID to any > > specific fops for matching. If you debug more deeper, you > would find > > the mdi_pi_online fails at *sfo_device_probe() routine of struct > > scsi_failover_ops. > > > > Cheers > > Javen > > > > Somnath kotur wrote: > > > > >Hi Javen, > > > Would you be able to help with some > > MPxIO > > >support problems i am facing currently with my > > iSCSI > > >HBA Driver or guide me to someone /a forum who > > could? > > >I find that there has already been an entry with similiar > questions > > >on the driver-discuss /storage-discuss forum by one 'ram > vegesna' and > > nobody > > >has replied to it yet? > > > > > >Basically mdi_pi_online() is returning MDI_NOT_SUPPORTED > .The first > > >time i got this error > > i > > >realised that i had to add entry of my LUN to the > scsi_vhci.conf file > > >after which it worked. But > > since > > >then (a reboot later) every single attempt at this > > has > > >been failing with the same error code,could you pls help? > > > > > >Thanks > > >Som > > > > > > > > > > > > ______________________________________________________________ > ______________________ > > >Never miss a thing. Make Yahoo your home page. > > >http://www.yahoo.com/r/hs > > > > > > > > > > > > > > > ______________________________________________________________ > ______________________ > You rock. That's why Blockbuster's offering you one month of > Blockbuster Total Access, No Cost. > http://tc.deals.yahoo.com/tc/blockbuster/text5.com > _______________________________________________ > storage-discuss mailing list > [email protected] > http://mail.opensolaris.org/mailman/listinfo/storage-discuss > _______________________________________________ storage-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/storage-discuss
