Figure 319: ETERNUS DX100 S3 reverse cabling with two to ten drive enclosures
The following step by step instructions can be used to verify or to plug the cables:
a. The SAS port of CE CM#0 must be connected to the SAS IN port of DE-1 IOM#0.
b. Only if there are more than just one DE:
The IOM#0 SAS OUT port of DE-1 must be connected to the IOM#0 SAS IN port
of DE-2. If there are further DE’s they must be connected in the same way.
The IOM#0 OUT port of the always last DE remains unused.
c. The SAS port of CE CM#1 must be connected to the IOM#1 SAS IN port of the
always last DE
d. Only if there are more than just one DE:
The IOM#1 SAS OUT port of the last DE must be connected to the IOM#1 SAS
IN port of the predecessor DE. If there are further DE’s each IOM#1 must be
connected in the same way.
The IOM#1 OUT port of DE-1 remains unused.
ETERNUS CS800 487
17 Storage Expansion
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