IBM DCS3860, Инструкция по установке, использованию и обслуживанию

Страница: 75 / 204

Attention:
– Repeatedly turning the power off and on without waiting for the drives to
spin down can damage the drives. Always wait for at least 90 seconds after
you turn off the power before you turn it on again.
– If you are connecting a power cord to a storage system enclosure, turn off the
power switches first. If the main circuit breaker is turned off, ensure that both
power switches are off on each storage enclosure in the rack before you turn
on the main circuit breakers.
– Turn on the power to the supporting devices (for example, Ethernet switches
and management stations) before powering on the storage system enclosures.
1.
Check whether the main circuit breakers are turned on. If yes, then turn off both
power switches on each enclosure that you intend to connect to power. If not,
then turn off
both power switches on all enclosures in the storage system.
2. Ensure 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 controller enclosures so that the controllers
recognize all drives in the configuration during the startup process.
Depending on the number of enclosures in the configuration, the storage
system 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
storage enclosure turn on and off intermittently. The cache battery backup
self-test might take up to an additional 15 minutes to be completed. During this
time, the LEDs on the front and rear of the storage system might flash
intermittently.
4. Check the LEDs on the front and rear of all the storage enclosures. Ensure that
no amber LEDs are lit on any of the storage enclosures.
5. Determine the status of all the components in the storage system configuration
by completing the following steps:
dcsi0056
AC DC
2
1
I
O
AC DC
2
1
I
O
Power connector
Power supply A
Power switch LEDs
Power supply B
Figure 25. Power-supply switches and connectors for DCS3860 dc models
Chapter 4. Operating the DCS3860 storage system and EXP3800 expansion enclosure
57