Users Guide

Fabric OS Troubleshooting and Diagnostics Guide 27
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Connection problems
3
Checking the Name Server
1. Enter the nsShow command on the switch to determine if the device is attached:
switch:admin> nsshow
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
FC4s: FCP [SEAGATE ST318304FC 0005]
Fabric Port Name: 20:0e:00:60:69:10:9b:5b
NL 051ee8; 3;21:00:00:20:37:d9:6f:eb;20:00:00:20:37:d9:6f:eb; na
FC4s: FCP [SEAGATE ST318304FC 0005]
Fabric Port Name: 20:0e:00:60:69:10:9b:5b
NL 051eef; 3;21:00:00:20:37:d9:77:45;20:00:00:20:37:d9:77:45; na
FC4s: FCP [SEAGATE ST318304FC 0005]
Fabric Port Name: 20:0e:00:60:69:10:9b:5b
N 051f00; 2,3;50:06:04:82:bc:01:9a:0c;50:06:04:82:bc:01:9a:0c; na
FC4s: FCP [EMC SYMMETRIX 5267]
Fabric Port Name: 20:0f:00:60:69:10:9b:5b
2. Look for the device in the Name Server (NS) list, which lists the nodes connected to that
switch. This allows you to determine if a particular node is accessible on the network.
• If the device is not present in the NS list, the problem is between the device and the
switch. There may be a time-out communication problem between edge devices and the
name server, or there may be a login issue. First check the edge device documentation to
determine if there is a time-out setting or parameter that can be reconfigured. Also, check
the port log for NS registration information and FCP probing failures (using the
fcpProbeShow command). If these queries do not help solve the problem, contact the
support organization for the product that appears to be inaccessible.
• If the device is listed in the NS, the problem is between the storage device and the host.
There may be a zoning mismatch or a host/storage issue. Proceed to Chapter 9, “Zoning”.
3. Enter the portLoginShow command to check the port login status.