Chapter 5: Subsystem Maintenance and Upgrading
4. The chance of charger failure is comparatively low. If the
cause of a failure cannot be determined even after a BBU is
replaced, contact your system vendor for a replacement
controller and return the controller module through
Infortrend’s standard RMA procedure.
5.5
Replacing a Faulty PSU
5.5.1
PSU Overview
Two (2) redundant PSUs:
The subsystem is preinstalled with
two (2) 530W, fully redundant, hot-swappable PSUs. These
modules are located at the rear section of the subsystem.
PSU bracket:
PSU is a 2U canister that houses both the power
supply converter unit and the cooling module. The PSU is
located in the front section and a removable cooling module is
mounted in the rear section. If the PSU is removed from the
chassis, the cooling module is also removed.
Immediate replacement:
When a PSU fails, it should be
replaced immediately. However, do not remove the PSU unless a
replacement is readily available. Removing a PSU without a
replacement will cause severe disruptions to the internal airflow
and the subsystem will quickly overheat, possibly causing
irreparable damage to some of the subsystem components.
WARNING!
Although the PSUs are fully redundant, it is not advisable to run
the subsystem with a single PSU for an extended period of time.
5.5.2
Replacing the PSU
WARNING!
Before you install a replacement PSU, be sure that it bears the
same warning text on its extraction handle as that shown on the
handle of a remaining PSU. Double-check to avoid mixing a
similar yet incompatible PSU of another EonStor series.
Replacing a Faulty PSU
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