HP AE370A HP StorageWorks Fabric OS 6.x administrator guide (5697-7344, March - Page 345

Monitoring AL_PAs, Monitoring end-to-end performance

Page 345 highlights

Monitoring AL_PAs You can use the perfShowAlpaCrc command to display the CRC error count for all AL_PA devices or for a single AL_PA on a specific active L_Port. The following example displays the CRC error count for all AL_PA devices on a port: switch:admin> perfshowalpacrc 1/1 AL_PA CRC count 0xd9 0 The following example displays the CRC error count for a single AL_PA device on a port: switch:admin> perfshowalpacrc 1/1, 0xd9 The CRC count at ALPA 0xd9 on port 1 is 0x000000000. The following example clears the CRC error count: switch:admin> perfclearalpacrc 1/1, 0xd9 CRC error count at AL_PA 0xd9 on port 1 is cleared. switch:admin> perfclearalpacrc 1/1 No AL_PA value is specified. This will clear all AL_PA CRC counts on port 1. Do you want to continue? (yes, y, no, n): [no] y Please wait ... All alpa CRC counts are cleared on port 1. In 3.1.0, 4.1.0, and later versions, you can use the portStatsClear command to clear AL_PA- based CRC error counters for all the ports in the same group. Monitoring end-to-end performance End-to-end performance monitoring counts the number of words and CRC errors in Fibre Channel frames for a specified Source ID (SID) and Destination ID (DID) pair. An end-to-end performance monitor includes these counts: • RX_COUNT (words in frames received at the port) • TX_COUNT (words in frames transmitted from the port) • CRC_COUNT (frames with CRC errors received at or transmitted from the port) To enable end-to-end performance monitoring, you must configure an end-to-end monitor on a port, specifying the SID-DID pair (in hexadecimal). The monitor counts only those frames with matching SID and DID. Each SID or DID has the following three fields. • Domain ID (DD) • Area ID (AA) • AL_PA (PP) For example, the SID 0x118a0f denotes DD 0x11, AA 0x8a, and AL_PA 0x0f. You can monitor end-to-end performance using the perfMonitorShow command, as described in "Displaying monitor counters" on page 357. You can clear end-to-end counters using the perfMonitorClear command, as described in "Clearing monitor counters" on page 361. Fabric OS 6.x administrator guide 347

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Fabric OS 6.x administrator guide
347
Monitoring AL_PAs
You can use the
perfShowAlpaCrc
command to display the CRC error count for all AL_PA devices or
for a single AL_PA on a specific active L_Port.
The following example displays the CRC error count for all AL_PA devices on a port:
switch:admin> perfshowalpacrc 1/1
AL_PA
CRC count
--------------------
0xd9
0
The following example displays the CRC error count for a single AL_PA device on a port:
switch:admin> perfshowalpacrc 1/1, 0xd9
The CRC count at ALPA 0xd9 on port 1 is 0x000000000.
The following example clears the CRC error count:
switch:admin> perfclearalpacrc 1/1, 0xd9
CRC error count at AL_PA 0xd9 on port 1 is cleared.
switch:admin> perfclearalpacrc
1/1
No AL_PA value is specified. This will clear all AL_PA CRC
counts on port 1. Do you want to continue? (yes, y, no, n): [no]
y
Please wait ...
All alpa CRC counts are cleared on port 1.
In 3.1.0, 4.1.0, and later versions, you can use the
portStatsClear
command to clear AL_PA- based
CRC error counters for all the ports in the same group.
Monitoring end-to-end performance
End-to-end performance monitoring counts the number of words and CRC errors in Fibre Channel frames
for a specified Source ID (SID) and Destination ID (DID) pair. An end-to-end performance monitor includes
these counts:
RX_COUNT (words in frames received at the port)
TX_COUNT (words in frames transmitted from the port)
CRC_COUNT (frames with CRC errors received at or transmitted from the port)
To enable end-to-end performance monitoring, you must configure an end-to-end monitor on a port,
specifying the SID-DID pair (in hexadecimal). The monitor counts only those frames with matching SID and
DID.
Each SID or DID has the following three fields.
Domain ID (DD)
Area ID (AA)
AL_PA (PP)
For example, the SID 0x118a0f denotes DD 0x11, AA 0x8a, and AL_PA 0x0f.
You can monitor end-to-end performance using the
perfMonitorShow
command, as described in
Displaying monitor counters
” on page 357. You can clear end-to-end counters using the
perfMonitorClear
command, as described in ”
Clearing monitor counters
” on page 361.