Fujitsu PRIMEQUEST 420, Руководство по планированию установки

Страница: 84 / 104

A-2 U41644-J-Z816-5-76
Appendix A Racks
If the PRIMEQUEST 520A*/520/420 is mounted not in a Fujitsu 19-inch global rack
but in another type of rack such as a rack manufactured by another company,
validation (verification of cooling in the rack and the rack strength) cannot be
performed and operation cannot be guaranteed. In such cases, this verification is
entirely the customer's responsibility.
If another company's rack must be used, refer to Appendix A.2.2, "Conditions for
mounting in another company's rack," and consider appropriate racks.
A.2.1 Conditions for mounting in Fujitsu 19-inch global racks
This section describes the conditions for unit mounting in the 19-inch global racks
manufactured by Fujitsu.
Two types of Fujitsu 19-inch global rack are available: one type has a stabilizer for
preventing the rack from toppling, and the other type does not have it (the rack is
designed to be secured to the floor). Order the appropriate type according to (4),
"Selecting the rack type."
(1) Rack stability
To maintain the PRIMEQUEST 520A*/520/420 or add an optional unit to the system,
the PRIMEQUEST 520A*/520/420 unit must be pulled out from the front of the rack.
Appropriate measures such as securing the rack to the floor must be taken to prevent
the rack from toppling when the PRIMEQUEST 520A*/520/420 unit is pulled out.
There are two methods for preventing the rack from toppling. If the number of
mounted units is not more than the recommended number of mounted units as
indicated in Table A.1 and the mounting height not higher than the recommended
mounting height indicated in the same table, use the first method. Otherwise, use the
second method.
Table A.1 Recommended number of units to be mounted in racks
The following explains these rack-fixing methods.
*: not supported by Fujitsu Technology Solutions
Rack
Recommended
number of
units to be mounted
Remarks
PRIMEQUEST 520A*/
520/420
1 Mounting height is 24U
or lower.