POST and boot specifications

When the switch is powered on or rebooted, the switch performs POST. Total boot time with POST is at least three minutes.

Use fastboot to 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 CLI. 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

•Initializing the links

•Analyzing the fabric

If any ports are connected to other switches, the switch participates in a fabric configuration.

•Assigning domain IDs and port addresses

•Constructing the unicast routing tables

•Enabling normal port operation

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Managing SAN Switches

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IBM AA-RWF3A-TE manual Post and boot specifications, Boot
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AA-RWF3A-TE specifications

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