Sun Microsystems 3900 Series User Manual
44
Sun StorEdge 3900 and 6900 Series Troubleshooting Guide • March 2002
CODE EXAMPLE 3-8
Failed Path marked “unusable”
FRU tests available for the A4/B4 FC Link
Segment
Segment
■
The
switchtest
can only be run from the Storage Service Processor
■
The
linktest
will be able to isolate the switch and the GBIC on the switch. It
will not be able to isolate the cable or the Sun StorEdge T3+ array controller.
▼
To Isolate the A4/B4 FC Link
1. Quiesce the I/O on the A4/B4 FC link path.
2. Run
linktest
from the Storage Automated Diagnostic Environment GUI to
isolate suspected failing components.
Alternatively, follow these steps:
1. Quiesce the I/O on the A4/B4 FC link path.
2. Run
switchtest
to test the entire link (re-create the problem).
3. Break the connnection by uncabling the link.
4. Insert the loopback connector into the switch port.
# cfgadm -al
Ap_Id
Type
Receptacle
Occupant
Condition
ac0:bank0 memory connected configured ok
ac0:bank1
memory
empty
unconfigured unknown
c1
scsi-bus
connected
configured
unknown
c16
scsi-bus
connected
unconfigured unknown
c18
scsi-bus
connected
unconfigured unknown
c19
scsi-bus
connected
unconfigured unknown
c1::dsk/c1t6d0
CD-ROM
connected
configured
unknown
c20
fc-private
connected
unconfigured unknown
c21
fc-fabric
connected
configured
unknown
c21::50020f2300006355
disk
connected
configured
unusable