Planning device installation positions 
Removing filler panels from device installation positions 
2 Installing Devices 
2b 
2a 
Recommended installation positions 
Total required cabinet space = 2 U + 2 U x (Number of 2 U disk enclosures) + 4 U x (Number of 4 U disk enclosures) 
For example, if the OceanStor 5500 V3 is equipped with three 2 U disk enclosures and three 4 U disk enclosures, 
the space required by a cabinet is calculated as follows: 
20 U = 2 U + 2 U x 3 + 4 U x 3 
Note: The height of the storage system is measured by the unit of U. 1 U equals 44.45 mm (1.75 inches). 
Tips 
Install devices from the 
bottom up and from heavy 
to light (The total power of 
all the devices cannot 
exceed the total power of 
the cabinet). 
4 
Disk enclosure (4 U) 
Install the controller 
enclosure in the middle of 
a cabinet between 19 U 
and 20 U. 
Disk enclosure (4 U) 
Disk enclosure (4 U) 
Disk enclosure (2 U) 
Controller enclosure (2 U) 
Disk enclosure (2 U) 
Disk enclosure (2 U)