Connecting The Controller Tray To Expansion Trays - Sun Oracle Sun Storage 2500-M2 Arrays Hardware Installation Manual

3. Carefully slide the tray into the cabinet until the front mounting flanges on the
tray touch the vertical face of the cabinet and the rear edges of the tray fit into
the clips on the support rails. The tray is correctly aligned when these
conditions are met:
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4. Secure the front of the tray to the cabinet by inserting a screw through the
center hole in each front mounting flange. If you used a washer for the top
mounting rail screw, insert a washer between the mounting flange and the
cabinet rail. Tighten the screws.
5. Secure the rear side of the tray to each mounting rail by inserting one screw
through the side sheet metal of the tray into the captured nut on the mounting
rail. Tighten the screw.
6. Replace the end caps that cover the mounting flanges on the front of the tray.
7. Verify that the tray power switches and cabinet circuit breakers are turned off.
8. Connect each tray power supply to a separate power source in the cabinet.
Connecting the Controller Tray to
Expansion Trays
Each expansion tray can contain a maximum of twelve drives.
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The maximum number of drive slots in the storage array is 48.
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The IOMs in an expansion tray contain two sets of In ports and one set of Out
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ports.
Each controller module has one dual-ported SAS expansion port to connect to the
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expansion trays.
To maintain data access in the event of the failure of a controller, an IOM, or a
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drive channel, you must connect an expansion tray or a string of expansion trays
to both drive channels on a redundant path pair.
24 Hardware Installation Guide • June 2011
The middle mounting holes on the front flanges of the tray align with the
mounting holes on the front of the mounting rails.
The rear edge of the tray sheet metal fits into the clip on the mounting rail.
The holes in the tray sheet metal for the rear hold-down screws align with the
captured nuts in the side of the mounting rails.