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Replacing an LRC/ESH

About the LRC/ESH  Top

The LRC/ESH in a DS14/DS14mk2 FC includes a SCSI-3 Enclosure Services Processor. It maintains the integrity of the loop when disks are swapped and provides signal retiming for enhanced loop stability. There are two LRC/ESHs in the middle of the rear of the disk shelf, one for Channel A and one for Channel B.

Note
The Input and Output ports on LRC/ESH B on the DS14/DS14mk2 FC are inverted from LRC/ESH A.

Connectors in an LRC/ESH

The LRC/ESH has the following connectors.

LRC/ESH connector

Function

Input

Provides the interface between the disk shelf and the storage appliance.

Output

Provides the interface between two disk shelves to create a loop of daisy-chained disk shelves.

For detailed information  Top

This section provides information about the following topics:

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