This past week I wanted to use the Solaris cfgadm utility to unconfigure a few LUNs. When I ran ‘cfgadm -al’, I noticed that the FC adaptors were not visible in the cfgadm output:
$ cfgadm -al
Ap_Id Type Receptacle Occupant Condition
c2 scsi-bus connected configured unknown
c2::dsk/c2t0d0 CD-ROM connected configured unknown
usb0/1 unknown empty unconfigured ok
usb0/2 unknown empty unconfigured ok
This seemed odd, since I could see the controllers in the vxdmpadm output:
$ vxdmpadm listctlr all
CTLR-NAME ENCLR-TYPE STATE ENCLR-NAME
=====================================================
c1 Disk ENABLED Disk
c0 Disk ENABLED Disk
c4 EMC ENABLED EMC0
c3 EMC ENABLED EMC0
c4 EMC_CLARiiON DISABLED EMC_CLARiiON0
c3 EMC_CLARiiON DISABLED EMC_CLARiiON0
Since the controllers in question were Emulex adaptors, I read through the Emulex admin guide and found that the platform and FC adaptor had to be DR aware to support configure/unconfigure operations. Since I couldn’t locate a “DR aware” label in our vendors documentation, I decided to open a ticket to see if the servers supported cfgadm. After a week or two of chatting with support, our vendor indicated that we would need to use the Sun Leadville drivers to configure and unconfigure LUNs with Emulex adaptors in Solaris systems. This was awesome news, and I am super happy that the lpfc driver will now be installed in /kernel/drv by default! Niiiiiiice.