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EMC VNX5400 Hardware Information Guide
Disk-array enclosures
3U, 120 (2.5-inch) DAE (DAE8S)
IMPORTANT
In a VNX5400 platform, the 3U, 120 (2.5-inch) DAE is only supported in a Dense rack
configuration. This Dense rack is 40U or 5.1 ft (1.55 m) high and 44 in. (17.32 cm) deep.
Each 3U, 120 (2.5-inch) DAE that goes into the Dense rack weighs 50 lb (22.6 kg) empty
and 165 lb (74.8 kg) fully loaded. As a result; whenever the 3U, 120 (2.5-inch) DAE
configuration is ordered, it is assembled and configured at the factory before shipping.
Access to the internal components in a 3U, 120 (DAE8S) enclosure mounted 31U (4.5 ft,
or 1.38 m) or higher above the floor requires an appropriate EMC service ladder and is
restricted to authorized service personnel only. Attempts to service disks, fans, or other
DAE components mounted 31U or higher without a recommended EMC service ladder and
personnel may result in serious personal injury. If an EMC service ladder is on site, this
ladder is the property of EMC and is only available for use by authorized EMC service
personnel.
If installing a new 3U, 120 DAE or replacing an existing 3U, 120 DAE above 31U is
necessary, then an appropriate portable mechanical lifting device is required. For more
information about this type of device, see
“Appendix B: Field lift tool and accessory kit”
.
The 3U, 120 (2.5-inch) DAE in the VNX5400 platform is 3U (5.25 in.) high.
an example of the front and rear views of a 3U, 120 (2.5-inch) DAE.
Figure 68 Example of a 3U, 120 (2.5-inch) DAE (front and rear views)
Front
Rear