EMC Symmetrix DMX-3, Руководство по эксплуатации продукта, Страница: 281 / 326

Powering down the Symmetrix DMX-3 281
Power Sequences
Powering down the Symmetrix DMX-3
Note: The Symmetrix DMX-3 is designed to stay powered up for most all
situations. Unless there is an emergency situation, first call the EMC Service
Support Center for assistance before powering down the Symmetrix DMX-3.
Perform these steps to power down the Symmetrix DMX-3, using the
PDP power switches located on the rear door of the system bay and
storage bays:
1. Stop all processes to the Symmetrix DMX-3.
Note: If you are powering down the Symmetrix DMX-3 for an emergency
condition, stopping all processes to the system is not necessary.
2. On the rear door of the system bay Figure 68 on page 280 , press
the Zone A and Zone B PDP power switches to the down (O) OFF
position.
3. On the rear door of the storage bays Figure 68 on page 280 , press
the Zone A and Zone B PDP power switches to the down (O) OFF
position.
Note: The BBU modules automatically turn on when the Symmetrix
system detects loss of AC power. The BBU modules will maintain power
to the Symmetrix system for up to five minutes while the global memory
is vaulted to the vault drives.