Maintenance Flow; Precautions For Replacement - Fujitsu M10-4 Service Manual

definition of maintenance, see
Table 10-1 Types of maintenance for the power supply unit
Configuration
Single-chassis configuration Supported
Building block configuration Supported (*2)
*1: For a single-chassis configuration, the inactive/cold maintenance procedure is the same as that for stopping the system, therefore see
the procedure for system-stopped maintenance.
*2: Active/hot replacement can be performed only with a redundant configuration.
10.2.2

Maintenance flow

Table 10-2
units.
Table 10-2 Maintenance flow
Details of update process
1
2
3
4
10.2.3

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. Using excessive force may
■
damage the component or the chassis.
"4.3 Understanding Types of
Active/hot Active/cold
Unsupported
Unsupported
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
Inactive/hot Inactive/cold (*1)
Supported Supported
Supported Supported
Chapter 10 Maintaining the Power Supply Units
Maintenance."
System stopped
Supported
Supported
Replacement
10.3
10.4
10.5
10.6
201