IBM DS3500, Инструкция по установке, эксплуатации и обслуживанию

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The following procedure addresses two situations:
v The entire storage subsystem has been shut down (the main circuit breakers for
the rack are off).
v
Some expansion enclosures are being powered-on while others remain online
(the main circuit breakers for the rack are on). You might encounter this if you
are adding an expansion enclosure to increase storage capacity.
Attention:
1. Repeatedly turning the power off and on without waiting for the drives to spin
down can damage the drives. Always wait at least 70 seconds after you turn
off the power before you turn it on again.
2. If you are connecting a power cord to a storage subsystem or expansion
enclosure, turn off both of its power switches first. If the main circuit breaker
is off, make sure that both power switches are off on each expansion
enclosure in the rack before you turn on the main circuit breakers.
1. Are the main circuit breakers turned on?
v
Yes: Turn off both power switches on each enclosure that you intend to
connect to the power.
v
No: Turn off both power switches on all enclosures in the storage subsystem.
2. Make sure that all power cords are connected.
Note: If the power cords are not connected, turn off both power switches on all
modules in the configuration before you connect power cords or turn on
the main circuit breakers.
3. If the main circuit breakers are turned off, turn them on.
Attention: You must turn on power to each attached expansion enclosure
before you turn on power to the storage subsystem so that the controllers
recognize all drives in the configuration during the startup process.
4. Turn on both power switches on the rear of each expansion enclosure that is
attached to the storage subsystem. While each expansion enclosure powers up,
the green and amber LEDs on the front and rear of the expansion enclosure
turn on and off intermittently. Depending on the configuration, it can take several
minutes for each expansion enclosure to power-on.
Check the LEDs on the front and rear of all the expansion enclosures. Make
sure that no amber LEDs are lit on any of the expansion enclosures.
5. Turn on both ac power switches on the rear of the storage subsystem. Figure 66
shows the locations of the ac power switches.
Depending on the number of expansion enclosures in the configuration, the
storage subsystem might take up to 10 minutes to fully power-on. While each
storage enclosure powers-on, the green and amber LEDs on the front and rear
of the expansion enclosure turn on and off intermittently. The cache battery
Power
switch Power
connector Power
switch Power
connector
Figure 66. Power-supply switches and connectors for the DS3500
Chapter 4. Operating the storage subsystem and expansion enclosure
69