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POST and boot specifications
When the switch is powered on or rebooted, the switch performs POST. Total boot
time with POST is at le ast three minutes.
Use fastboot t
o bypass POST after subsequent reboots. For more information about
the fastboot command, refer to the Fabric OS command reference manual for the
Fabric OS version running on your switch.
POST
POST is a system check that is performed each time the switch is powered on, rebooted,
or reset. During POST , the LEDs flash different colors. Any errors that occur during
POST appear in the error log.
Monitor POST diagnostic tests via the error log or the C LI. The POST process consists of:
• Displaying preliminary POST diagnostics
• Initializing the operating system
• Initializing the hardware
• Performing diagnostic tests that check several functions, including circuitry, port
functionality, memory, statistics counters, and serialization
Boot
Boot completes in approximately three minutes during POST. The boot process consists of:
• Defining the universal port configuration set
• Initial
izing the links
• Analyzing the fabric
If any ports are connected to other switches, the switch participates in a fabric
configuration.
• Assig
ning domain IDs and port addresses
• Constructing the unicast routing tables
• Enabling normal port operation
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Managing SAN Switches