LUN has gone AWOL - Solaris 10 x86, Emulex HBAs, IBM DS8300

Question

We're setting up a test environment for our backup software, currently running on Windows, but targeted for Solaris. This is also a test of our first Solaris x86 deployment.
* HP DL580 G5 server.
* Solaris 10 x86 10/08 w/patch cluster from ~March 18th.
* One dual port Emulex HBA
* IBM DS8300 SAN
When we first set this up, we could see the one LUN in format. After adding in the IBM Multipathing software, the LUN disappeared and the FC devices are shown as unconfigured in `cfgadm -al`. We removed the IBM multipathing software, but still cannot see the LUN. Did a reconfiguration reboot and all that.
Current state:
# cfgadm -al c6
Ap_Id                          Type         Receptacle   Occupant     Condition
c6                             fc-fabric    connected    unconfigured unknown
c6::5005076306130287           unknown      connected    unconfigured unknown
# luxadm -e port
/devices/pci@0,0/pci8086,3607@4/pci10b5,8533@0/pci10b5,8533@a/pci10df,fe00@0/fp@0,0:devctl  CONNECTED
/devices/pci@0,0/pci8086,3607@4/pci10b5,8533@0/pci10b5,8533@a/pci10df,fe00@0,1/fp@0,0:devctl  NOT CONNECTED
# luxadm -e dump_map /devices/pci@0,0/pci8086,3607@4/pci10b5,8533@0/pci10b5,8533@a/pci10df,fe00@0/fp@0,0:devctl
Pos  Port_ID Hard_Addr Port WWN         Node WWN         Type
0    a0200   0        5005076306130287 5005076306ffc287 0x1f (Unknown Type)
1    a0100   0        10000000c97a7866 20000000c97a7866 0x1f (Unknown Type,Host Bus Adapter)
# modinfo|grep FC
102 ffffffffefc2c000  1aab0 190   1  fp (SunFC Port v20090205-1.79)
103 ffffffffefc47000  199f0 194   1  fcp (SunFC FCP v20090205-1.132)
104 ffffffffefc63000   a2a0   -   1  fctl (SunFC Transport v20090205-1.59)
107 ffffffffefc6c000 377bc0 191   1  emlxs (SunFC emlxs FCA v20081211-2.31p)
189 ffffffffefb547e0   9620 193   1  fcip (SunFC FCIP v20090205-1.50)
190 ffffffffefb49dc0   5610 196   1  fcsm (Sun FC SAN Management v20070116)
#c6 is the first port on the dual port card. c7, not shown, is the second port. Prior to installing the IBM multipathing software, we were seeing the one assigned LUN on c6.
Trying to `cfgadm -c c6` does nothing. Adding `-f` causes an error:
# cfgadm -c configure c6
# cfgadm -al c6
Ap_Id                          Type         Receptacle   Occupant     Condition
c6                             fc-fabric    connected    unconfigured unknown
c6::5005076306130287           unknown      connected    unconfigured unknown
# cfgadm -f -c configure c6
cfgadm: Library error: failed to create device node: 5005076306130287: Invalid argument
failed to configure ANY device on FCA port
# cfgadm -al c6
Ap_Id                          Type         Receptacle   Occupant     Condition
c6                             fc-fabric    connected    unconfigured unknown
c6::5005076306130287           unknown      connected    unconfigured unknown
#We're currently at a loss here. Any pointers would be greatly appreciated. I am checking sunsolve and google, with plenty of similar hits, but no resolution as yet.
Thanks,
Mark

Answer 1

Ok, so after that detailed message, my SAN admin just realised he hadn't assigned any LUNs to the server. :D
The LUN that we had seen previously was an artifact from an earlier configuration.