Perfshowalpacrc – Dell POWEREDGE M1000E User Manual

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Fabric OS Command Reference

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perfShowAlpaCrc

Displays the CRC error count by port or by arbitrated loop physical address (AL_PA).

Synopsis

perfshowalpacrc [slot/]port [ALPA]

Description

Use this command to display the cyclic redundancy check (CRC) error count of one or all devices
attached to a port. If the AL_PA operand is specified, only the CRC count for that AL_PA device is
displayed. If the AL_PA operand is not specified, the CRC count for all the AL_PA devices on a
specified port are displayed.

CRC count is a 64-bit counter. The CRC count value is displayed in hexadecimal.

Notes

This command requires an Advanced Performance Monitoring license.

This command is not supported on virtual FC ports (VE/VEX_Port), EX_Port, M (Mirror) ports and
GbE ports.

The execution of this command is subject to Virtual Fabric or Admin Domain restrictions that may
be in place. Refer to chapter 1, "Using Fabric OS commands" and Appendix A, "Command
Availability" for details.

This command is not supported on all platforms. Refer to the Fabric OS Administrator's Guide for
specific hardware support.

Operands

This command has the following operands:

slot

For bladed systems only, specifies the slot number of the port to be displayed,
followed by a slash (/).

port

Specifies the number of the port to be displayed, relative to its slot for bladed
systems. Use switchShow for a list of valid ports.

ALPA

Specify the AL_PA address to get the CRC errors for a specific device. This
operand is optional; if the operand is omitted, this command displays CRC
error counts for all devices attached to the specified port.

Examples

To display the CRC error count for all AL_PA devices on a port:

switch:admin>

perfshowalpacrc 2/4

ALPA CRC_ERROR_COUNT

----------------------------------

0x01

0x03