CAUTION: If the enclosure system operates for too long (depending on altitude) with drive drawers open, the enclosure can overheat, causing power failure and data loss. Such use may invalidate the warranty.

Electrostatic discharge precautions

To avoid injury and damage to the enclosure, always follow electrostatic discharge (ESD) precautions.

ESD is generated by two objects with different electrical charges coming into contact with each other. The resulting electrical discharge can damage electronic components and PCBs.

Dell recommends to always use an antistatic mat and antistatic wrist or ankle strap while working on components in the interior of an enclosure.

Observe all conventional ESD precautions when handling plugin modules and components.

Avoid contact with backplane components and module connectors.

When you are not using the components and PCBs, keep them in their antistatic bags.

Pre-replacement tasks

If the FRU is not hotswappable, the EMMs and enclosure must be turned off.

Turning off the EMMs and enclosure

About this task

To turn off the EMMs and enclosure, complete the following tasks:

Steps

1.Before turning off the EMMs and enclosure, identify the failed devices.

2.Stop I/O to the storage enclosure.

3.Turn off the EMMs and PSUs in the enclosure using the power switches located on the corresponding devices.

4.Disconnect power from the enclosure by removing the power cords from all the PSUs in the enclosure.

Replacing PSUs

The Dell Storage MD1280 enclosure supports two 2.8kW AC hotswappable PSUs. If one PSU stops functioning, the second PSU continues to supply power to the enclosure.

Identifying the failed PSU

To identify a non-functioning PSU, use the secli component of the Storage Enclosure Management Software or visually verify which PSU is not functioning. For more information on using the secli to identify failed devices, see the Dell Storage MD1280 Administrator's Guide.

Replacing a PSU

About this task

To replace failed PSUs, complete the following tasks:

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Dell MD1280 manual Pre-replacement tasks, Replacing PSUs