HP StorageWorks Scalable File Share - Manual (Page 269)

Troubleshooting file system performance 9–45
Use the
telnet
(1) command to access the Fibre Channel switch, as shown in the following example:
# telnet 192.168.32.1
The throughput statistics for the ports on a switch are refreshed once every second. To view details of the
speed that each port on the switch is running at, log in to the switch and enter the following command. In
this example, the command is run on switch
p16fc1
, which is inactive:
p16fc1:admin> portPerfShow
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Total
----------------------------------------------------------------------------
2.0k 0 0 0 0 0 0 0 0 0 0 0 0 2.0k 0 0 4.1k
0 8.9k 0 0 0 0 0 0 0 0 0 0 0 8.9k 0 0 17k
48k 0 0 0 0 0 0 0 0 0 0 0 46k 2.0k 0 0 96k
21k 2.0k 0 0 0 0 0 0 0 0 0 0 17k 6.2k 0 0 46k
6.2k 0 0 0 0 0 0 0 0 0 0 0 0 9.7k 0 112 16k
0 6.2k 0 0 0 0 0 0 0 0 0 0 0 2.8k 0 0 9.0k
2.0k 0 0 0 0 0 0 0 0 0 0 0 0 2.0k 0 0 4.1k
17k 2.0k 0 0 0 0 0 0 0 0 0 0 17k 2.0k 0 0 38k
2.0k 0 0 0 0 0 0 0 0 0 0 0 0 2.0k 0 0 4.1k
The output is displayed in bytes per second, with the appropriate modifier (for example, 17k is 17 kilobytes,
17m is 17 megabytes, and so on).
To determine what component is using each port, enter the
switchShow
command, which displays the
WWID seen at each port, as shown here:
p16fc1:admin> switchShow
switchName: p16fc1
switchType: 17.2
switchState: Online
switchMode: Native
switchRole: Subordinate
switchDomain: 1
switchId: fffc01
switchWwn: 10:00:00:60:69:5a:25:6b
switchBeacon: OFF
Zoning: OFF
port 0: id 2G Online F-Port 21:00:00:e0:8b:0e:ac:9c
port 1: id 2G Online F-Port 21:01:00:e0:8b:2e:ac:9c
port 2: id 2G Online F-Port 21:01:00:e0:8b:28:ed:ea
port 3: id 2G Online F-Port 21:01:00:e0:8b:30:ab:23
port 4: id 2G No_Light
port 5: id 2G No_Light
port 6: id 2G No_Light
port 7: id 2G No_Light
port 8: id 2G No_Light
port 9: id 2G No_Light
port 10: id 2G No_Light
port 11: id 2G No_Light
port 12: id 2G Online F-Port 50:00:1f:e1:50:03:a6:bd
port 13: id 2G Online F-Port 50:00:1f:e1:50:03:a6:b9
port 14: id 2G No_Light
port 15: id N2 Online E-Port 10:00:00:60:69:5a:26:23 "p16fc2" (upstream)
p16fc1:admin>
The example output shows the following:
• Port 15 is connected to another Fibre Channel switch on the storage subsystem.
• Ports 12 and 13 are connected to the controllers accessing the storage (this can be seen by the
50:00
prefix to the WWID).
• Servers in the HP SFS system are connected to ports 0, 1, 2, and 3 (prefixed with
21:00
or
21:01
).