Infortrend DS1012R2C000D-SFP - Single-Controller Models; Connection between Storage Systems and Expansion Enclosures

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Single-Controller Models
Single-controller models are designated by a “G” in their model number. The second
controller slot is filled with a dummy cage (D).
Connection between Storage Systems and Expansion Enclosures
The following rule applies when connecting storage systems and expansion
enclosure(s):
 Dual-controller storage system connects to dual-controller expansion
enclosure.
 Single-controller storage system connects to single-controller
expansion enclosure.