Sun Microsystems 3900 FRU Tests Available for the A4 or B4 FC Link Segment, # cfgadm -al, disk

CODE EXAMPLE 5-8Failed Path Marked Unusable

# 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

FRU Tests Available for the A4 or B4 FC Link Segment

■The switchtest can only be run from the Storage Service Processor.

■The linktest can isolate the switch and the GBIC on the switch. It cannot isolate the cable or the Sun StorEdge T3+ array controller.

▼To Isolate the A4 or B4 FC Link

To isolate the A4 or B4 link, which is the FC link from the switch to the Sun StorEdge T3+ array, follow these steps.

1.Quiesce the I/O on the A4 or B4 FC link path.

2.Run linktest(1M) from the Storage Automated Diagnostic Environment GUI to isolate suspected failing components.

Alternatively, follow these steps:

1.Quiesce the I/O on the A4 or B4 FC link path.

2.Run switchtest(1M) to test the entire link (re-create the problem).

3.Break the connection by uncabling the link.

4.Insert the loopback connector in to the switch port.

64 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide • March 2003

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