Reference v4.1.0 Instruction Manual

314 Network OS Command Reference

53-1003115-01

ha enable

Enables the High Availability feature.

Synopsis ha enable

Operands None

Defaults HA is disabled.

Command Modes Privileged EXEC mode

Description Use this command to enable the High Availability (HA) feature on a switch. If the HA feature is

already enabled, this command has no effect.

If the HA feature is disabled, this command enables it. The standby management process reboots

as part of the process.

Running the command displays a warning message and prompts for confirmation before rebooting

the management module.

You can also use this command to display the servers that are running the syslogd daemon and

those that system messages are sent to. Servers are specified in the configuration database by

IP address.

Usage Guidelines This command is supported only on the local management module.

This command is not supported on the standby management module.

Do not use this command unless instructed by Brocade Support.

NOTE

With the introduction of Network OS 4.0, failover is no longer disruptive for all Layer 2.

Examples To display the syslog daemon IP addresses configured on a switch:

switch# ha enable

Warning: This command will enable the HA. It will reboot the standby CP and

require all telnet, secure telnet, and SSH sessions to the standby CP to be

restarted.

Are you sure you want to go ahead [y/n]? y

1970/01/01-00:07:18, [EM-1047], 113, MM1, INFO, chassis, CP in slot 2 not faulty,

CP ERROR deasserted.

HTBT hit a threshold: 2

Heartbeat to 2 Down!

resetting peer

resetting peer 127.2.1.2

HA is enabled

See Also ha disable, ha failover, reload, show ha