User guide

Rack information C–23
Hitachi Unified Storage VM Block Module Hardware User Guide
If access is available to the top of the leveling foot from the inside of the
cabinet, a flat blade screwdriver may be used to drop the leveler down.
Alternatively, you can loosen the leveler by turning it clockwise with a
wrench to fit into the 1 inch hex pad. Once leveled, the jaw nuts can be used
to secure the leveler in place.
The leveling feet are screwed in at the factory and tightened to avoid
loosening during shipment. If you have difficulty loosening up the levelers
from top, use the wrench to break them loose from the bottom.
Stabilizing the rack
Hitachi racks allow many components to be installed vertically. Plan the
weight and location of the components to place the center of mass as much
as possible below the mid-point of the rack. To reduce the risk of danger to
persons or equipment, follow the safety guidelines and stabilize the rack as
described in the following paragraphs.
If you are installing a single (stand-alone) rack, be sure the rack is level and
that it has been stabilized before installing the components. If an unstable
rack is loaded with components, it may become unbalanced and fall over.
If installing drive boxes in adjacent racks, bay the racks together and be
sure both racks are level and stabilized before installing components in the
rack.
Figure C-10: Example of Leveling Feet
Item Description
1 Access to leveling foot to allow manual adjustment with flat-tip screwdriver
2 1” (25 mm) Hex Foot Pad
3Jam Nut
4 Wrench (not supplied with cabinet)