Make sure that you have a replacement module of the same type before removing any faulty module. See “Module removal and replacement” in the
Dell PowerVault ME4 Series Storage System Owner’s Manual.
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, as described in
Electrical safety. 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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