Fibre Channel (FC) SAN-Connected Storage Devices Disappear After a Non-Related Server Part is Replaced (Doc ID 1940663.1)

Last updated on JUNE 11, 2019

Applies to:

Symptoms

A system board, a backplane, or some other internal component of a server is replaced, necessitating removal of all cables connected to the server.  After the part has been replaced, and cables have been reconnected, the FC/SAN devices have all disappeared:

luxadm -e port

/devices/pci@8,600000/SUNW,emlxs@1/fp@0,0:devctl                NOT CONNECTED
/devices/pci@8,600000/SUNW,emlxs@2/fp@0,0:devctl                NOT CONNECTED

However, the HBA ports are confirmed to be connected to switch ports:

ls -l /dev/cfg

c3 -> ../../devices/pci@8,600000/SUNW,emlxs@1/fp@0,0:fc
c4 -> ../../devices/pci@8,600000/SUNW,emlxs@2/fp@0,0:fc

fcinfo | egrep 'cfg|State'

       OS Device Name: /dev/cfg/c3
       State: online
       OS Device Name: /dev/cfg/c4
       State: online

Changes

Previously the HBA ports were connected to storage devices:

luxadm -e port

/devices/pci@8,600000/SUNW,emlxs@1/fp@0,0:devctl                CONNECTED
/devices/pci@8,600000/SUNW,emlxs@2/fp@0,0:devctl                CONNECTED


The connections were through two separate switches.  Note the duplicate Port IDs connected to different storage array ports:

luxadm -e dump_map /dev/cfg/c3

Pos  Port_ID Hard_Addr Port WWN         Node WWN         Type
0    6202c0  0         5006000513275410 5006000513275410 0x0  (Disk device)
1    630300  0         5006000513275411 5006000513275411 0x0  (Disk device)
2    6600c8  0         1000000086975364 2000000086975364 0x1f (Unknown Type,Host Bus Adapter)

luxadm -e dump_map /dev/cfg/c4

Pos  Port_ID Hard_Addr Port WWN         Node WWN         Type
0    6202c0  0         5006000513275400 5006000513275400 0x0  (Disk device)
1    630300  0         5006000513275401 5006000513275401 0x0  (Disk device)
2    660102  0         1000000086975346 2000000086975346 0x1f (Unknown Type,Host Bus Adapter) 

Cause

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