Brocade Fabric OS Troubleshooting and Diagnostics Guide v6.2.0 (53-1001187-01, April 2009)

24 Fabric OS Troubleshooting and Diagnostics Guide

53-1001187-01

Connection problems

• If the missing device is not logically connected, check the device and everything on that

side of the data path. Also see “Link failures” on page 25 for additional information.

Checking the path includes the following for the Host. Verify the following:

• All aspects of the Host OS.

• The third-party vendor multi-pathing input/output (MPIO) software if it is being used.

• The driver settings and binaries are up to date.

• The device Basic Input Output System (BIOS) settings are correct.

• The HBA configuration is correct according to manufacturers specifications.

• The SFPs in the HBA are compatible with the Hosts HBA.

• The cable going from the switch to the Host HBA is not damaged.

• The SFP on the switch is compatible with the switch.

• All switch settings related to the Host.

Checking the path includes the following for the Target:

• The driver settings and binaries are up to date.

• The device Basic Input Output System (BIOS) settings are correct.

• The HBA configuration is correct according to the manufacturers specifications.

• The SFPs in the HBA are compatible with the Target HBA.

• The cable going from the switch to the Target HBA is not damaged.

• All switch settings related to the Target.

See “Checking for a loop initialization failure” on page 26 as the next potential trouble

spot.

Checking the name server (NS)

1. Enter the nsShow command on the switch to determine if the device is attached:

The Local Name Server has 9 entries {

Type Pid COS PortName NodeName TTL(sec)

*N 021a00; 2,3;20:00:00:e0:69:f0:07:c6;10:00:00:e0:69:f0:07:c6; 895

Fabric Port Name: 20:0a:00:60:69:10:8d:fd

NL 051edc; 3;21:00:00:20:37:d9:77:96;20:00:00:20:37:d9:77:96; na

FC4s: FCP [SEAGATE ST318304FC 0005]

Fabric Port Name: 20:0e:00:60:69:10:9b:5b

NL 051ee0; 3;21:00:00:20:37:d9:73:0f;20:00:00:20:37:d9:73:0f; na

FC4s: FCP [SEAGATE ST318304FC 0005]

Fabric Port Name: 20:0e:00:60:69:10:9b:5b

NL 051ee1; 3;21:00:00:20:37:d9:76:b3;20:00:00:20:37:d9:76:b3; na

FC4s: FCP [SEAGATE ST318304FC 0005]

Fabric Port Name: 20:0e:00:60:69:10:9b:5b

NL 051ee2; 3;21:00:00:20:37:d9:77:5a;20:00:00:20:37:d9:77:5a; na

FC4s: FCP [SEAGATE ST318304FC 0005]

Fabric Port Name: 20:0e:00:60:69:10:9b:5b

NL 051ee4; 3;21:00:00:20:37:d9:74:d7;20:00:00:20:37:d9:74:d7; na