Checking The Simple Name Server (Sns) - HP A7533A - Brocade 4Gb SAN Switch Base User Manual

Checking the Simple Name Server (SNS)

1. Issue the nsShow command on the switch to which the device is attached.
For example:
The Local Name Server has 9 entries {
Type Pid COS
*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;
FC4s: FCP [SEAGATE ST318304FC
Fabric Port Name: 20:0e:00:60:69:10:9b:5b
NL 051ee0;
FC4s: FCP [SEAGATE ST318304FC
Fabric Port Name: 20:0e:00:60:69:10:9b:5b
NL 051ee1;
FC4s: FCP [SEAGATE ST318304FC
Fabric Port Name: 20:0e:00:60:69:10:9b:5b
NL 051ee2;
FC4s: FCP [SEAGATE ST318304FC
Fabric Port Name: 20:0e:00:60:69:10:9b:5b
NL 051ee4;
FC4s: FCP [SEAGATE ST318304FC
Fabric Port Name: 20:0e:00:60:69:10:9b:5b
NL 051ee8;
FC4s: FCP [SEAGATE ST318304FC
Fabric Port Name: 20:0e:00:60:69:10:9b:5b
NL 051eef;
FC4s: FCP [SEAGATE ST318304FC
Fabric Port Name: 20:0e:00:60:69:10:9b:5b
N 051f00;
FC4s: FCP [EMC
Fabric Port Name: 20:0f:00:60:69:10:9b:5b
2. Look for the device in the SNS list, which lists the nodes connected to that switch, allowing you to
determine whether a particular node is accessible on the network.
• If the device is not present in the SNS list, the problem is between the storage device and the
switch. There might be a timeout communication problem between edge devices and the SNS, or
there might be a login issue. First check the edge device documentation to determine whether there
is a timeout setting or parameter that can be reconfigured. 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 SNS list, the problem is between the storage device and the host.
There might be a zoning mismatch or a host/storage issue. Proceed to
problems" on page 148.
3. Issue the portLoginShow command to check the port login status.
4. Issue the fcpProbeShow command to display the FCP probing information for the devices attached
to the specified F_Port or FL_Port.
This information includes the number of successful logins and SCSI INQUIRY commands sent over this
port and a list of the attached devices.
5. Check the port log to determine whether the device sent the Fabric Login (FLOGI) frame to the switch,
and the switch probed the device.
PortName
3;21:00:00:20:37:d9:77:96;20:00:00:20:37:d9:77:96; na
3;21:00:00:20:37:d9:73:0f;20:00:00:20:37:d9:73:0f; na
3;21:00:00:20:37:d9:76:b3;20:00:00:20:37:d9:76:b3; na
3;21:00:00:20:37:d9:77:5a;20:00:00:20:37:d9:77:5a; na
3;21:00:00:20:37:d9:74:d7;20:00:00:20:37:d9:74:d7; na
3;21:00:00:20:37:d9:6f:eb;20:00:00:20:37:d9:6f:eb; na
3;21:00:00:20:37:d9:77:45;20:00:00:20:37:d9:77:45; na
2,3;50:06:04:82:bc:01:9a:0c;50:06:04:82:bc:01:9a:0c; na
SYMMETRIX
NodeName TTL(sec)
0005]
0005]
0005]
0005]
0005]
0005]
0005]
5267]
Fabric OS 5.x administrator guide 147
"Checking for zoning