Replacing The Psu - Infortrend EonStor DS S48 Series Hardware Manual

5.4.2

Replacing the PSU

A failed PSU should be replaced as soon as possible, but only when you have a
replacement module in your hand. Contact technical support for more details (refer to
Customer Support).
WARNING
Although the system can operate using a single PSU module, it is not advisable to run
the EonStor DS system with a single PSU module for an extended period of time.
When a PSU is removed form the chassis, the cooling module is also removed from
the chassis. Hence the airflow provided by the cooling module is also disabled. With
an empty module bay, airflow will also be disrupted. It is therefore recommended the
replacement procedure is completed in less than five minutes to prevent the system
from overheating.
To replace a PSU, follow these steps:
1. Disconnect the power cord.
2. Loosen the retention screw that secures the extraction handle to the chassis.
3. Remove the PSU module. Grab the extraction handle and pull the handle
upwards to disconnect the PSU from the backplane connectors. Once dislodged,
gently pull the PSU out of the system. If the system is mounted in a rackmount
rack, use another hand to support its weight while removing the module.
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