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Deskside DPE Powerup and Initialization Sequence
2-15
Installing a Deskside DPE
Deskside DPE Powerup and Initialization Sequence
You apply power to a deskside DPE by setting the power switch on
each PDU to 1 (on). When you apply power, the disk drives power up
according to their specifications, and spin up in a specified sequence.
The slot spin-up delays are multiples of 12 seconds. The maximum
delay is 84 seconds. These delays also apply to drives inserted while a
deskside DPE is powered up. Spindle synchronization is supported
within enclosures, but not between enclosures.
The LCC CRU monitor resets and begins its control loop. The drives
set the state of the port bypass circuit. The CRU monitor continues to
run in this local mode until it receives SP commands that dictate
otherwise.
The drives and SPs read their Fibre Channel address ID only at
powerup or when reset. As a result, you must set the DAE enclosure
address and SP addresses while power is off. You cannot change the
address while power is on.
Содержание FC4400
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