RAID Array 3000 Controller Shelf
∙Install the UPS below the shelves and as low as possible in the cabinet.
∙Ensure there is a approximate
3.2Installing Shelves in the Cabinet
Determining the best location to install the Controller and Device Expansion Shelves in the cabinet depends on the number of expansion shelves in your sub- system configuration. The shelves should be grouped as shown Figures
Install the UPS at the bottom of the cabinet with the subsystem shelves directly above. The host system (not shown) can reside between the UPS and the subsys- tem shelf group.
Note that the Controller Shelf in each figure is located directly below the first Device Expansion Shelf. This minimizes the distance between the connectors to enable the 0.5 meter SCSI cable connections between the modules in the Con- troller Shelf and each Device Expansion Shelf.
NOTES
∙The distance between shelves should not ex- ceed one 1.5 inches.
∙Because of power cord lengths, the distance between the last Device Expansion Shelf at the top of a shelf group and the UPS should not ex- ceed 45 inches.
The target SCSI bus addresses of the drives in the Device Expansion Shelves (shown on each storage device in Figures
In a three and