Daisy Chaining; Daisy Chaining Configurations - HGST Ultrastar Data102 User Manual

User Guide
Figure 209: Drive Layout
6. Push the enclosure back into the rack to ensure proper cooling.
5.5 Daisy Chaining
5.5.1 Daisy Chaining Configurations
This section provides information on the predefined daisy chaining configurations for the Ultrastar
Data102. The Ultrastar Data102 supports configurations up to four enclosures daisy chained
together using active cables. The Daisy Chaining Key identifies the specific information needed to
use the cable maps in the following sections. The daisy chaining configurations are broken into two
sections: one host configurations and two host configurations. Each of the sections provide a list
of the configurations and an example diagram of how the enclosures can be connected using SAS
cables.
The specific connections for each configuration can be found in
(page 261) and Two Host Cable Configurations
Active Cables: During the process of Daisy Chaining the Ultrastar Data102 enclosures, active
cables must be used when connecting between enclosures. The use of active cables provides
improved signal integrity between the enclosures.
The following diagram identifies the host, host ports, IOM configuration, and IO SAS connections.
One Host Cable Configurations
(page 267).
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5. System Management

5.5 Daisy Chaining