Fujitsu M10-4 Service Manual page 341

Table 18-1 Types of maintenance for the power supply unit
Configuration
Building block configuration Supported (*1)
*1: Active/hot replacement can be performed only with a redundant configuration.
*2: If any physical partition is currently operating, the crossbar box cannot be powered off.
*3: All the physical partitions must be powered off, and the system must be completely shut down.
18.2.2 Maintenance flow
Table 18-2
units.
Table 18-2 Maintenance flow
Details of update process
1
2
3
4
18.2.3 Precautions for replacement
Note the following points when replacing a power supply unit:
There are two power supply units. Thus, the system can continue operating even
■
if one of the units fails. Do not, however, operate the system for an extended
period while one unit has failed.
When replacing multiple power supply units, replace one unit at a time. If
■
redundancy of the power supply unit cannot be assured, then system-stopped
maintenance must be performed.
Do not force push the power supply unit into its slot. If excessive force is applied,
■
other components or the chassis may be damaged.
18.3 Enabling the Removal of a Power
Supply Unit
This section describes the preparations that must be completed prior to the removal
Active/hot Active/cold
Unsupported
(*2)
lists the sequence of the maintenance procedure for the power supply
Preparation
Removing a power supply unit
Installing a power supply unit
Restoring the system
Chapter 18 Maintaining the Power Supply Units of the Crossbar Box
Inactive/hot Inactive/cold
Unsupported Unsupported
(*2)
System stopped
Supported (*3)
Replacement
18.3
18.4
18.5
18.6
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