Sun Microsystems 6900 Series, 3900 Series manual FRU tests available for the A4/B4 FC Link Segment

CODE EXAMPLE 3-8 Failed	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/B4 FC Link 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.

44 Sun StorEdge 3900 and 6900 Series Troubleshooting Guide • March 2002