IBM DCS3860, Инструкция по установке, использованию и обслуживанию

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2. Check the LEDs. Note down any amber LEDs that are lit so that you can
correct the problem when you turn on the power again.
3.
Turn off all power-supply switches, starting with the DCS3860 storage system
first and followed by the EXP3800 expansion enclosures. Then, disconnect the
power cables from the storage system.
Restoring power after an unexpected shutdown
Complete the following steps to restore power to the storage system after an
unplanned shutdown:
DANGER
Never turn on any equipment when there is evidence of fire, water, or
structural damage.
1. After the emergency situation is over or power is restored, check the storage
system for damage.
2. If there is evidence of damage to any of the storage system components, cables,
or equipment that is attached to the storage system, do not continue with this
procedure. Contact your IBM technical-support representative for assistance.
Depending on the current service agreements, you might have to return the
equipment to the factory or local service center for repair.
Attention: To avoid potential data loss, ensure that the storage system and the
expansion enclosure power switches are turned off before you reset circuit
breakers in the rack. Resetting circuit breakers after an emergency situation
while the storage system and the expansion enclosure power switches are
turned on can cause data loss, because the configuration components might not
be powered-on in the correct sequence. See “Powering on the DCS3860” on
page 56 for details about the correct power-on sequence.
3.
After you check the storage system for damage, ensure that the power switches
are off; then connect the DCS3860 power cables, if required.
4. Check the system documentation of the hardware devices that you want to
turn on and determine the correct startup sequence.
5. Turn on both of the power-supply switches on EXP3800 expansion enclosures
and make sure that no ESM or power-supply fault LEDs are lit before you
power on the DCS3860 storage system.
In addition, consider the following items:
v
The storage system supports simultaneous power-on of the system
components. However, always check the system documentation of the
hardware devices that you want to turn on and determine the correct startup
sequence.
v
A storage system in an optimal state recovers automatically from an
unexpected shutdown and unattended simultaneous restoration of power to
system components. After power is restored, contact your IBM
technical-support representative if any of the following conditions occur:
– The storage system logical drives and arrays do not display in the Storage
Manager graphical user interface.
– The storage system logical drives and arrays do not come online.
– The storage system logical drives and arrays seem to be degraded.
6. Turn on both of the power-supply switches on the DCS3860 storage system. See
“Solving problems” on page 123.
Chapter 4. Operating the DCS3860 storage system and EXP3800 expansion enclosure
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