User guide

C–10 Rack information
Hitachi Unified Storage VM Block Module Hardware User Guide
Floor load ratings
The floor load rating must be sufficient to support a fully loaded Hitachi rack.
The total weight of a storage system in the maximum configuration is
approximately 6165 lbs (2793 kg.) including the rack. Hitachi Data Systems
recommend that you place the rack over a sufficient number of floor tiles to
distribute the weight evenly.
Universal Rail Kit
Hitachi Data Systems offers the following third-party Universal Rail Kit 19-
inch rack-mount rail support kits for rack mounting devices in third-party
racks:
• Rail kits for use with 2U trays (item code 7846417)
• Rail kits for use with 3U and 4U trays (item code 7846464)
The contents of the kits are:
• Inner rail assembly left
• Inner rail assembly right
• Four M5 flat-head screws
• Four M5 cage nuts
The kits offer the following adjustability and load-bearing limit:
• Minimum depth adjustability:23.8 inches (606 mm)
• Maximum depth adjustability:33.1 inches (842 mm)
• Load-bearing limit: 150 lbs (68 kg)
The following procedure describes how to install a Universal Rail Kit 19-inch
rack-mount rail support kit (see Figure C-6: Installing the rack-mount rail
kit on page C-11). When using a third-party rack, ensure that the rack
meets or exceeds the specifications of the Hitachi rack described in this
chapter.
1. Install the first inner rail assembly (either the left or right):
2. Loosen the hex nuts at the rear of the support rail kit to adjust for the
depth of the storage component to be rack mounted.
3. Orient and insert the caged nuts into the square EIA rail flanges (one
front and one rear per side).
4. Align the support rail flange holes with the caged nuts and install the
front screw to secure the assembly in place.
Note: The data in the following table was taken from measurements of a
system in a controlled environment. To calculate the power draw, current
draw, and heat output of a specific system, see Table 4-10: HUS VM
component specifications on page 4-13, or (easier) use the Power and
Weight calculator at the following URL.
http://www.hds.com/go/weight-and-power-calculator/
Contact technical support if you need assistance using this tool. See Getting
help on page 3-xi in the preface of this manual.