EMC VNX Series Hardware Information Manual page 94

Disk-array enclosures
3U, 120 (2.5-inch) DAE (DAE8S)
94 EMC VNX8000 Hardware Information Guide
Each power supply is an auto-ranging, power-factor-corrected, multi-output, offline
converter with its own line cord. Each supply supports a fully configured DAE and shares
load currents with the other supply. The drives and LCCs have individual soft-start
switches that protect the disk drives and LCCs if they are installed while the disk
enclosure is powered up.
The enclosure cooling system includes two dual-blower modules.
IMPORTANT
In a VNX7600 platform, the 3U, 120 (2.5-inch) DAE is only supported in a Dense rack
configuration. This Dense rack is 40U or 5.1 feet (1.55 meters) high and 44 inches
(17.32 cm) deep. Each 3U, 120 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 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
on page 168.
The 3U, 120 (2.5-inch) DAE in the VNX7600 platform is 3U (5.25 in.) high.
page 95 shows an example of the front and rear views of a 3U, 120 (2.5-inch) DAE.
"Appendix B: Field lift tool and accessory kit"
Figure 75 on