HP StorageWorks 8B FC Entry Switch - Manual (Page 22)

3-2 Advanced Performance Monitoring User’s Guide
Using Advanced Performance Monitoring
3
AL_PA Performance Monitoring
AL_PA performance monitoring allows you to track and display the number of CRC errors that
have occurred on frames sent to each AL_PA on a specific port. No monitor configuration is
necessary for AL_PA performance monitoring.
Displaying the CRC Error Count
Use the perfShowAlpaCrc command to display the CRC error count for all AL_PA devices or a
single AL_PA on a specific port. The port must be an active L_Port.
Example 1. This command displays the CRC error count for all AL_PA devices on port 3:
Example 2. The following command displays the CRC error count for AL_PA 0x01 on port 3:
Clearing the CRC Error Count
Use the perfClrAlpaCrc command to clear the CRC error count for AL_PA devices on a specific
port. You can clear the error counts for all the AL_PA devices on a port or for a specific AL_PA.
Example 1. The following command clears the CRC error count for all AL_PA devices on port 3:
Example 2. The following command clears the CRC error count for AL_PA 1 on port 3:
sw1:admin> perfShowAlpaCrc 3
AL_PA CRC count
--------------------
0x01 2
0x02 0
0x04 1
sw1:admin> perfShowAlpaCrc 3, 0x01
The CRC count at ALPA 0x1 on port 3 is 0x000000002.
sw1:admin> perfClrAlpaCrc 3
This will clear all ALPA CRC counts on port 3.
Do you want to continue? [y|n]y
Please wait ...
All alpa CRC counts are cleared on port 3.
admin> perfClrAlpaCrc 3, 0x01
CRC error count at ALPA 0x1 on port 3 is cleared.