Brocade Fabric OS Command Reference Manual Supporting Fabric OS v7.0.0 (April 2011)

266 Fabric OS Command Reference
53-1001764-01
fastBoot
22
fastBoot
Reboots the Control Processor (CP), bypassing the Power-On Self-Test (POST).
SYNOPSIS fastboot
DESCRIPTION Use this command to perform a "cold reboot" (power off/restart) of the CP bypassing POST when the
system comes back up. Bypassing POST can reduce boot time significantly. If POST was previously
disabled using the diagDisablePost command, then fastBoot is the same as reBoot.
The fastBoot operation is disruptive, and the command prompts for confirmation before executing.
When you reboot a switch connected to a fabric, all traffic to and from that switch stops. All Fibre Channel
ports on that switch including E_Ports become inactive until the switch comes back online.
The behavior of this command varies according to platform type:
• When issued on a standalone (single-processor) switch, this command performs a cold reboot of the
switch.
• When issued on an enterprise-class platform (Brocade DCX, DCX-4S, or 48000) with two CPs
(active and standby), the following rules apply:
- When the Standby CP reboots, it goes down and there is no failover because there is no traffic
on that switch. When the Standby CP comes up again, it is temporarily no longer in sync with
the Active CP.
- When the Active CP reboots, it fails over to the Standby CP. The Standby CP becomes the new
Active CP and traffic is disrupted.
- When HA is disabled and fastBoot is issued on the Active CP, both the Active and Standby CPs
reboot with the original mastership retained. The original Active CP remains the Active CP after
the reboot, and the original Standby CP remains the Standby CP. After the reboot, HA is
enabled.
- When HA is disabled and fastBoot is issued on the Standby CP, the Standby CP reboots
without prompting. It boots up with the default switch only, even if the Active CP has multiple
logical switches configured. After the Standby CP boots up, HA is still disabled.
NOTES 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 None
EXAMPLES To reboot a standalone (single-processor) switch without executing POST on startup:
switch:admin> fastboot
Warning: This command would cause the switch to reboot
and result in traffic disruption.
Are you sure you want to reboot the switch [y/n]? y
Broadcast message from root (pts/0) Sun Feb 28 19:49:45 2010...
The system is going down for reboot NOW !!