Thanks for your help everyone. I am pursuing this both on the SAN itself, as well as from the OS. The SAN itself apparently defaults to using loop mode FC, and it showed both ports as in a disconnected state. I switched it to auto-negotiate and the ports report as up on the SAN. After rebooting the server I see the following in dmesg: scsi1 : Brocade FC/FCOE Adapter, model: Brocade-425 hwpath: 0000:07:00.1 driver: 2.1.1.1 BFA[0000:07:00.0][info] BFA_AEN_PORT_ONLINE: Base port online: WWN = 10:00:00:05:33:26:b3:e2. BFA[0000:07:00.0][error] HAL_SM_ASSERT: SM Assertion failure: /net/sj-hbabld-01/vws1/swrel_fchba2.1.1.1_fchba2.1.1x_patch_ga_s.vws/scm_dev_fchba/build/linux/driver_update_disks/ddiskit-1.0/bfa_x86_64/rpm/BUILD/bfa-2.1.1.1/_kmod_build_/fcs/fcpim.c:353: event = 4 BFA[0000:07:00.1][info] BFA_AEN_PORT_ONLINE: Base port online: WWN = 10:00:00:05:33:26:b3:e3. BFA[0000:07:00.1][error] HAL_SM_ASSERT: SM Assertion failure: /net/sj-hbabld-01/vws1/swrel_fchba2.1.1.1_fchba2.1.1x_patch_ga_s.vws/scm_dev_fchba/build/linux/driver_update_disks/ddiskit-1.0/bfa_x86_64/rpm/BUILD/bfa-2.1.1.1/_kmod_build_/fcs/fcpim.c:353: event = 4 Nothing shows up in fdisk -l. On Tue, Jan 4, 2011 at 10:02 AM, Jeff <jeff@xxxxxxxxxx> wrote: > Are there any access controls on the LUNs on the SAN? I have seen a few SANs > which do not present any LUNs until you have configured access control > lists. If the LUNs are hidden then you obviously wont see any disks in RHEL. > > Jeff > > On Tue, Jan 4, 2011 at 2:36 PM, Matty Sarro <msarro@xxxxxxxxx> wrote: > >> Dmesg only sees the brocade controller card; it doesn't see any disks >> or anything from what I can tell. Nothing is showing up in >> /etc/sysconfig/hwconf... that is where the disks should be listed >> correct? >> >> On Mon, Jan 3, 2011 at 11:25 PM, Eugene Vilensky <evilensky@xxxxxxxxx> >> wrote: >> > On Mon, Jan 3, 2011 at 7:18 PM, Matty Sarro <msarro@xxxxxxxxx> wrote: >> > >> >> I have configured dm-multipath (using: >> >> >> http://willsnotes.wordpress.com/2010/10/13/linux-rhel-5-configuring-multipathing-with-dm-multipath/ >> ). >> >> However nothing is showing up at all. I have rebooted numerous times, >> >> and nothing. >> >> >> >> fdisk -l doesn't show anything except the internal disks. Can anyone >> >> help give me an idea of how to proceed? Some help would be greatly >> >> appreciated. >> > >> > Is your HBA correctly negotiating between target and initiator at the >> > correct speed? ÂAre your initiator groups correctly set up on array? >> > Before setting up dm-multipath, your host has to see the disks (or >> > paths). ÂWhat does dmesg show on startup for any /dev/sc devices? >> > >> > -- >> > redhat-list mailing list >> > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe >> > https://www.redhat.com/mailman/listinfo/redhat-list >> > >> >> -- >> redhat-list mailing list >> unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe >> https://www.redhat.com/mailman/listinfo/redhat-list > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list