HP aruba 9300-32D Series, Руководство по установке и началу работы

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Introducing the Switches | 19
Never insert or remove a power supply while the power cord is connected. Verify that the cord has been
disconnected from the power supply before installation or removal.
Fan Trays
The switch is equipped with six field-replaceable, hot-swappable fan trays. Each fan tray features individual
fans that pull air through the chassis from front to back or back to front.
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Front-to-back
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Back-to-front
In the event of missing fan trays, misconfigured airflow direction, and/or faulted fans, the switch will try
to maintain adequate cooling by increasing fan speeds and/or disabling misconfigured devices. If
adequate cooling cannot be maintained, the switch will power off for five minutes before rebooting
and assessing cooling capabilities.
Fan trays and power supplies installed in a 9300-32D switch must have the same cooling air flow
direction. Air flow direction in an 9300-32D switch is not controlled by software. To change the air flow
direction, replace the power supplies and fan trays with power and fan tray units supporting the air flow
direction you require.
A minimum of five working fan trays are required for operation. The system will automatically shut down
if overheating is detected. If fewer than 6 working fan trays are detected, the Global status and fan LEDs
on the front of the switch and the corresponding Fan tray LEDs will FLASH amber.
If one fan tray is missing for more than two minutes the system will shut down. If two or more fan trays
are missing, faulted and/or misconfigured the system will shutdown for five minutes and then reboot to
reassess cooling capabilities.
System airflow direction is configured automatically at system initialization and cannot be reconfigured
by the user. System airflow direction is determined by the power supply type installed in PS1 at
initialization time (or PS2 if PS1 is absent or faulted). Any Fan tray or Power supply of conflicting airflow
type will be disabled by the system. Ensure only matching Fan trays and Power supplies are used at any
given runtime.