IBM DCS3700, Инструкция по установке, использованию и обслуживанию

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Attention:: Turning off and turning on power without waiting for the storage subsystem disk drives to
spin down can damage the drives and might cause data loss. Always wait at least 90 seconds
after you turn off the power before you turn on the power again.
Power-off overview
Review the following information before you continue with the power-off procedure:
Turn off the power to each device according to the following shutdown sequence:
1. Turn off power to the host before the storage subsystem. If the host must stay powered-on to support
a network, see the operating-system documentation for information about disconnecting the storage
subsystem logical drives from the host before the storage subsystem is powered-off.
2. Turn off power to the storage system before you turn off power to the expansion enclosures. Turn off
both power-supply switches on the rear of the enclosures.
3. Turn off power to other supporting devices (for example, management stations).
Note: You do not have to perform this step if you are servicing only the storage subsystem.
To turn off power to one or more components of the storage subsystem for a planned shutdown,
complete the steps in the following procedure. To turn off power for an unplanned shutdown,
see“Restoring power after an unexpected shutdown” on page 85.
Figure 9 on page 13 shows the locations of the power switches on a storage subsystem.
Before you proceed, use the Storage Manager software to determine the status of the storage subsystem
components and special instructions. The operating-system software might require you to perform other
procedures before you turn off the power.
1. Stop all I/O activity to each storage subsystem.
2. Determine the status of all storage subsystems components in the configuration by completing the
following steps:
a.
Check all LEDs on each component in the expansion enclosures. Make sure that all the LEDs show
normal status.
b. Check all LEDs on each component in the storage system. Make sure that all the LEDs show
normal status.
c.
Review the status of the configuration in the Subsystem Management window by clicking the
Summary tab.
The status is either Optimal or Needs Attention.
3. Do the LEDs indicate normal operation, and is the status Optimal on all configuration components?
v Yes: Go to step 5 on page 85.
v
No: Go to step 4.
4. To diagnose and correct the fault, complete the following steps:
a. Run the Recovery Guru by clicking Recovery Guru in the toolbar in the Subsystem Management
window.
b.
Complete the recovery procedure.
If the Recovery Guru directs you to replace a failed component, use the individual LEDs to locate
the failed component.
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IBM System Storage DCS3700: Installation, User, and Maintenance Guide