Chapter 2
Rack Installation Specifications
This chapter explains the rack installation specifications of the ETERNUS DX.
2.1 Rack Installation Requirements
This section explains the requirements for installing the ETERNUS DX in a 19-inch rack.
2.1.1 Placement in the Rack
Note the following when installing the ETERNUS DX in the rack.
•
The center of gravity must be taken into consideration to prevent a rack from toppling over. Enclosures
should generally be installed from bottom to top to lower the center of gravity and to ensure the safe use
of racks.
•
Enclosures are installed in the following order (from bottom to top).
Table 2.1 Enclosure Installation Order
Installation order
Enclosure Size (height)
4 Drive enclosure
High-density drive enclosure
2U
4U
3 Controller enclosure 3U
2 Power distribution unit
Power synchronized unit (*2)
1U/2U
1U
1 UPS (*1) —
*1: This is an Uninterruptible Power Supply.
*2: This is an optional product for only the ETERNUS DX.
•
When determining the rack-mounting layout of each enclosure and power distribution unit, consider the
length of each cable. For example, if the ETERNUS DX is installed at the top of a 2,000mm rack and a 4m
power cord is used, the surplus length of the power cord at the bottom of a rack should be about 2m.
•
If the storage system is installed at the bottom of a rack, a space for the surplus of cables may not be
available in some racks, preventing the storage system from being pulled out when maintenance work
is required.
In this case, secure a space of 1U or more at the bottom when installing the storage system.
•
If drive enclosures are to be added in the future, securing sufficient space for power distribution units in
the bottom of the rack is recommended.
37
FUJITSU Storage ETERNUS DX500 S3/DX600 S3 Disk storage system Site Planning Guide
Copyright 2014 FUJITSU LIMITED
P3AM-7712-05ENZ0
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