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Chapter 5 Troubleshooting the Fibre Channel (FC) Links 51
Sun Proprietary/Confidential: Internal Use Only
Verifying the Data Host
An error in the A2 or B2 FC link can result in a device being listed as in an
“unusable” state in cfgadm, but no HBAs being listed in the “unconnected” state in
the luxadm output. The multipathing software will note an offline path, as shown in
CODE EXAMPLE 5-4.
CODE EXAMPLE 5-4 cfgadm -al
Note – You can find procedures for restoring virtualization engine settings in the
Sun StorEdge 3900 and 6900 Series 2.0 Reference and Service Guide.
# /usr/sbin/cfgadm -al
Ap_Id Type Receptacle Occupant Condition
c0 scsi-bus connected configured unknown
...
# /usr/sbin/luxadm -e port
Found path to 2 HBA ports
/devices/pci@6,4000/SUNW,qlc@2/fp@0,0:devctl CONNECTED
/devices/pci@6,4000/SUNW,qlc@3/fp@0,0:devctl CONNECTED
# /usr/sbin/luxadm display /dev/rdsk/c6t29000060220041F96257354230303052d0s2
DEVICE PROPERTIES for disk: /dev/rdsk/c6t29000060220041F96257354230303052d0s2
Status(Port A): O.K.
Status(Port B): O.K.
Vendor: SUN
Product ID: SESS01
WWN(Node): 2a000060220041f9
WWN(Port A): 2b000060220041f9
WWN(Port B): 2b000060220041f4
Revision: 080C
Serial Num: Unsupported
Unformatted capacity: 102400.000 MBytes
Write Cache: Enabled
Read Cache: Enabled
Minimum prefetch: 0x0
Maximum prefetch: 0x0
Device Type: Disk device
Path(s):
/dev/rdsk/c6t29000060220041F96257354230303052d0s2
/devices/scsi_vhci/ssd@g29000060220041f96257354230303052:c,raw
Controller /devices/pci@6,4000/SUNW,qlc@3/fp@0,0
Device Address 2b000060220041f9,0
Class primary
State ONLINE
Controller /devices/pci@6,4000/SUNW,qlc@2/fp@0,0
Device Address 2b000060220041f4,0
Class primary
State OFFLINE