Table Of Contents

P Commands

ping

power redundancy-mode

poweroff

purge fcdomain fcid

pwd

P Commands

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The commands in this chapter apply to the Cisco MDS 9000 Family of multilayer directors and fabric switches. All commands are shown here in alphabetical order regardless of command mode. Please see the Command Mode section to determine the appropriate mode for each command. For more information, see the Cisco MDS 9000 Family Configuration Guide.

•ping

•power redundancy-mode

•poweroff

•purge fcdomain fcid

•pwd

ping

To diagnose basic network connectivity, use the ping (packet internet groper) command.

ping {host | address}

Syntax Description

host	Host name of system to ping (max size is 64).
address	Address of system to ping.

Defaults

This command has no default settings.

Verify connectivity to the TFTP server using the ping command.

Command Modes

EXEC

Usage Guidelines

The ping program sends an echo request packet to an address, then awaits a reply. Ping output can help you evaluate path-to-host reliability, delays over the path, and whether the host can be reached or is functioning.

Examples

switch# ping 192.168.7.27

PING 192.168.7.27 (192.168.7.27): 56 data bytes

64 bytes from 192.168.7.27: icmp_seq=0 ttl=255 time=0.4 ms

64 bytes from 192.168.7.27: icmp_seq=1 ttl=255 time=0.2 ms

64 bytes from 192.168.7.27: icmp_seq=2 ttl=255 time=0.2 ms

64 bytes from 192.168.7.27: icmp_seq=3 ttl=255 time=0.2 ms

--- 192.168.7.27 ping statistics ---

13 packets transmitted, 13 packets received, 0% packet loss

round-trip min/avg/max = 0.2/0.2/0.4 ms

power redundancy-mode

To configure the capacity of the power supplies on the MDS 9500 family of switches , use the power redundancy-mode command.

power redundancy-mode combined | redundant [force]

Syntax Descriptionpower redundancy-mode combined|redundant [force]fcdomainfcdomainfcdomainfcdomain

combined	Configure power supply redundancy mode as combined
force	Force combined mode without prompting
redundant	Configure power supply redundancy mode as redundant

ower

Defaults

None.

Command Modes

Configuration mode

Usage Guidelines

•If power supplies with different capacities are installed in the switch, the total power available differs based on the configured mode:

•In redundant mode, the total power is the lesser of the two power supply capacities. This reserves enough power to keep the system powered on in case of a power supply failure. This is the recommended/default mode.

•In combined mode, the total power is twice the lesser of the two power supply capacities. In case of a power supply failure, the entire system could be shut down, depending on the power usage at that time.

•When a new power supply is installed, the switch automatically detects the power supply capacity. If the new power supply has a capacity that is the lower than the current power usage in the switch and the power supplies are configured in redundant mode, the new power supply will be shutdown.

•When you change the configuration from combined to redundant mode and the system detects a power supply that has a capacity lower than the current usage, the power supply is shutdown. If both power supplies have a lower capacity than the current system usage, the configuration is not allowed.

Examples

The following examples demonstrates how the power supply redundancy mode could be set.

switch(config)# power redundancy-mode combined 

WARNING: This mode can cause service disruptions in case of a power supply failure. 
Proceed ? [y/n] y

switch(config)# power redundancy-mode redundant 

Related Commands

Command	Description
show environment power	Display status of power supply modules, power supply redundancy mode and power usage summary.
copy running-config startup-config	Copies all running configuration to the startup configuration, making power supply redundancy mode persistent across restarts.

poweroff

To poweroff individual modules in the system, use the poweroff module command.

poweroff module integer

Syntax Descriptionfcdomainfcdomainfcdomainfcdomain

poweroff module	Powers off the specified module in the switch.
no	Powers up the specified module in the switch

Defaults

None.

Command Modes

Configuration mode

Usage Guidelines

Use the poweroff module command to poweroff individual modules. The poweroff module command cannot be used to poweroff Supervisor modules

Examples

switch# config t

switch(config)# poweroff module 1

switch(config)#

switch(config)# no poweroff 1

switch(config)# 

Related Commands

Command	Description
show module	Displays information for a specified module.
copy running-config startup-config	Copies all running configuration to the startup configuration, making power on/off states for modules persistent

purge fcdomain fcid

To purge persistent FCIDs, use the purge fcdomain fcid command.

purge fcdomain fcid vsan vsan-range

Syntax Description

vsan vsan-range

Indicates that FCIDs are to be purged for a VSAN. The vsan range argument is ID of the VSAN range, from 1-4093.

Defaults

None

Command Modes

EXEC

Usage Guidelines

None.

Examples

This example shows how to purge of all dynamic, unused FC IDs in VSAN 4

switch# purge fcdomain fcid vsan 4

switch#

This example shows how to purge all dynamic, unused FC IDs in VSANs 4, 5, and 6.

switch# purge fcdomain fcid vsan 3-5

switch#

pwd

To display the current directory location, use the pwd command.

pwd

Syntax Description

This command has no keywords or arguments.

Defaults

None.

Command Modes

Exec

Usage Guidelines

None.

Examples

This example changes the directory and displays the current directory.

switch# cd bootflash:logs

switch# pwd

bootflash:/logs

Related Commands

Command	Description
cd	Changes the current directory to the specified directory.