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Infortrend RAID Controller Manual

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12-28<br />

Select partition<br />

Mapping optioin<br />

Mapping a Logical Drive/Logical Volume to the Host<br />

LUNs<br />

Select LUN number<br />

Confirming mapping<br />

scheme<br />

Choose “host channel-ID”<br />

Choose mapping to which “logical unit”<br />

Terminal Interface View of <strong>Controller</strong> Failure<br />

What will happen when one of the controllers fails?<br />

When one of the controllers fails, the other controller will take over in<br />

a few seconds.<br />

A warning will be displayed that a "SCSI Bus Reset Issued" for each<br />

of the SCSI channels.<br />

In addition, there will be an alert message that reads "Redundant<br />

<strong>Controller</strong> Failure Detected."<br />

Users will be notified by audible alarm.<br />

After a controller takes over, it will act as both controllers. If it was the<br />

Primary controller that failed, the Secondary controller becomes the<br />

Primary controller. If the failed controller is replaced by a new one<br />

later, the new controller will behave as the Secondary controller.<br />

<strong>Infortrend</strong>

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