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Elite 9 Installation Guide, Rev. B

Synchronizing spindles

in multiple drive configurations

If you are installing two or more Elite 9 drives, you may (optionally) synchronize their spindles to reduce the latency associated with switching from one drive to another.

Spindle sync cables are used to connect the drives.

Use pins 23 and 24 on the J4A connector to attach the spindle sync cable. Pin 24 provides the reference index signal (SSREF+) and pin 23 provides ground (GND). See Figure 8.

J4A

SCSI I/O

Connector

J01

J4B

DC Power

Connector

J4A

Pin 1

 

Spindle Sync Cable Connector

SSREF

Figure 8. Spindle sync jumpers and connectors (ST410800N shown)

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Seagate ST410800N/ND, ST410800W/WD manual Synchronizing spindles Multiple drive configurations