EMC VNX Series Hardware Information Manual page 105

Disk-array enclosures
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"
on page 168.
If replacing or adding a 3U, 120 (2.5-inch) DAE becomes necessary, a portable
(mechanical) lift is recommended by EMC. The portable lift commonly used by EMC
service personnel is manufactured by Alum-A-Lift. Included with the lift is a lift kit which
provides instructions for using the portable lift. For more information, refer to "Appendix
B: Field lift tool and accessory kit" on page 168.
IMPORTANT
The portable mechanical lift commonly used by EMC service personnel has two
settings—one with a lower mast and one with both a lower and upper mast (dual mast).
The lower mast setting is rated for 400 lb (178.09 kg) and is for raising or lowering of
objects 28U (4.08 ft or 1.2 m) or less above the floor. The dual mast setting is rated well
under 200 lb (89 kg) and is for raising objects more than 28U (4.08 ft or 1.2 m) above the
floor. A conversion kit from Alum-A-Lift and a support table is available from the lift
provider for installations above 28U. This kit is rated for 225 lb (102 kg). For more
information, refer to "Appendix B: Field lift tool and accessory kit" on page 168.
Refer to the following CAUTION that discusses the mounting and servicing of the 3U, 120
(2.5-inch) DAE in a 40U Dense rack.
To replace or add any of these components, refer to the respective Customer Replaceable
Unit (CRU) procedure for the 3U, 120 DAE. For example, to replace a disk drive, refer to the
Replacing a disk in a 120-disk enclosure document available online at
https://mydocs.emc.com/VNX/ and go to VNX Tasks, then select Replace VNX hardware.
Next, follow the steps in the wizard.
To prevent bodily injury when mounting or servicing the 3U, 120 DAE in a Dense rack, you
must take special precautions to ensure that the DAE remains stable. The following
guidelines are provided to ensure your safety:
1. When lifting this DAE, always use two to three people and a portable mechanical lifting
device.
2. For service personnel, when accessing this unit in a rack above 31U, always use an
EMC authorized ladder.
3. When mounting this unit in a partially filled rack, load the rack from the bottom to the
top with the heaviest component at or close to the bottom of the rack.
4. If the rack is provided with stabilizing devices, install the stabilizers before mounting
or servicing the DAE in the rack.
EMC VNX8000 Hardware Information Guide 105