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Dell PowerVault ME5 Series Storage System Deployment Guide

Troubleshooting hardware faults

Make sure that you have a replacement module of the same type before removing any faulty module.

NOTE If the enclosure system is powered up and you remove any module, replace it immediately. If the system is used with any modules missing for more than a few seconds, the enclosures can overheat, causing power failure and potential data loss. Such action can invalidate the product warranty.
NOTE Observe applicable/conventional ESD precautions when handling modules and components. Avoid contact with midplane components, module connectors, leads, pins, and exposed circuitry.

Isolating a host-side connection fault

During normal operation, when a controller module host port is connected to a data host, the port host link status/link activity LED is green. If there is I/O activity, the host activity LED blinks green. If data hosts are having trouble accessing the storage system, but you cannot locate a specific fault or access the event logs, use the following procedures. These procedures require scheduled downtime.

NOTE Do not perform more than one step at a time. Changing more than one variable at a time can complicate the troubleshooting process.

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