Replacing Components; Power Supply Unit - Fujitsu ETERNUS JX40 S2 Operating Manual

9

Replacing Components

V
CAUTION!
It is imperative that you read the chapter
page 15 in this manual before you carry out work on your storage
subsystem.
Information about relevant error messages concerning the components to be
replaced can be found here:
– section "Operation Panel" on page 34
– section "Power Supply Unit (PSU)" on page 39
– section "I/O Module" on page 37
– chapter "Fault Clearing" on page 57
I
See "Hard Disk Drives" on page 41
9.1

Power Supply Unit

The power supply units are supplied with mains voltage via the supplied
connecting leads.
The power supply units can be connected to two different phases of the in-
house circuit in order to achieve phase redundancy (see
Connection" on page
The ETERNUS JX40 S2 has two power supply units, which makes it possible
for a failed unit to be replaced while the system is running. Each power supply
unit contains fans.
V
CAUTION!
When replacing a power supply unit, do not leave it removed for longer
than 5 minutes to prevent temperature rise.
ETERNUS JX40 S2
49).
Operating Manual
chapter "Important Notes" on
for replacing hard disk drives.
section "Power Supply
61