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EMC Connectrix B Series DS-300B Hardware Reference Manual
Operating the DS-300B
POST and boot specifications
When the switch is turned on or rebooted, the switch performs POST.
Total boot time with POST is up to 3 minutes. POST can be omitted
after subsequent reboots by using the fastboot command or entering
the diagDisablePost command to persistently disable POST.
For more information about these commands, refer to the EMC
Connectrix B Series Fabric OS Command Reference Manual.
POST
The success or failure results of the diagnostic tests that run during
POST can be monitored through the error log or the command line
interface.
POST includes the following steps:
1. Preliminary POST diagnostics are run.
2. Operating system is initialized.
3. Hardware is initialized.
4. Diagnostic tests are run on several functions, including circuitry,
port functionality, memory, statistics counters, and serialization.
Boot
In addition to POST, boot includes the following steps after POST is
complete:
1. Universal port configuration is performed.
2. Links are initialized.
3. Fabric is analyzed, and if any ports are connected to other
switches, the switch participates in a fabric configuration.
4. Switch obtains a domain ID and assigns port addresses.
5. Unicast routing tables are constructed.
6. Normal port operation is enabled.
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