Dell POWEREDGE M1000E User Manual

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Fabric OS Command Reference

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fcPing

The execution of SuperPing requires that all switches in the fabric run Fabric OS v6.4.0 or later. For
switches running earlier versions of Fabric OS, the collected data is incomplete.

If a fabric reconfiguration occurs while SuperPing is in progress, the command reports an error
message. Exit the command and rerun the test after the fabric becomes stable again.

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.

Operands

This command has the following operands:

destination

Specifies the destination as follows.

•

When using fcPing between a source and a destination, specify the
destination as port WWN or a node WWN.

•

When using fcPing to ping a single device, specify the destination as a
PID, a switch WWN, a domain ID, or a switch domain controller ID.

•

When using fcPing with the --allpaths option, specify the destination as
a PID, a switch WWN, or a domain ID.

source

Specifies the source port ID, port WWN, or node WWN. This operand is
optional; it is not valid with the SuperPing command (--allpaths).

The following operands are valid only when fcPing is executed without the --allpaths option (legacy
mode):

number frames

Specifies the number of ELS Echo requests to send. The default value is 5.

length size

Specifies the frame size of the requests in bytes. The default value is 0.
Without data, the Fibre Channel Echo request frame size is 12 bytes. The
total byte count includes four bytes from the Echo request header and eight
bytes from the timestamp. The maximum allowed value is 2,036 bytes. The
length must be word-aligned.

interval wait

Specifies the interval, in seconds, between successive ELS Echo requests.
The default value is 0 seconds.

pattern pattern

Specifies up to 16 "pad" bytes, which are used to fill out the request frame
payload sent. This is useful for diagnosing data-dependent problems in the
fabric link. The pattern bytes are specified as hexadecimal characters. For
example, --pattern ff fills the request frame with instances of the number 1.
If a non-byte-aligned pattern is specified, the upper nibble of the last pattern
byte is filled with zeros. For example, --pattern 123 fills the payload with a
pattern of 0x1203.

bypasszone

Bypasses the zone check.

quiet

Suppresses the diagnostic output. Only zoning information, if applicable, and
the summary line are displayed.

The following operands are valid only when fcPing is executed to perform a SuperPing:

allpaths destination

Executes a SuperPing that covers all available paths to the specified
destination. The number of actual paths covered depends on two other
parameters that you can optionally specify. When you issue fcPing --allpaths