Sun Microsystems 220R manual About Server Rackmounting

About Server Rackmounting

The server may be mounted in any rack that meets the Electronic Industries Association (EIA) standard specification-310 (EIA 310). The system enclosure measures 7.00 inches high, 17.25 inches wide, and 27.25 inches deep (17.8 cm x 43.8 cm x 69.2 cm) and requires a minimum of four vertical rack units (RUs). The system has a maximum weight of 65 lb (34 kg).

Shipped with your system is the Sun Enterprise 220R Server Setup and Rackmounting Guide that describes the procedure for rackmounting the server. Use the guide to rackmount your server.

Rackmounting guidelines:

■Install the slide assemblies for the first server in the lowest permissible rack position.

■For stability, install the remaining servers from the lowest system upward into the rack, as shown in the next figure.

■To mount the server in an EIA standard rack, allow four RUs per system to obtain the highest density in the rack. Use the supplied Rack Buddy rackmounting template to locate the correct holes for server placement in the rack.

Note –For the latest configuration information about mixing different systems or peripherals in standard EIA 310-compliant racks, and for information about Sun’s rackmounting cabinets consult the Rackmount Placement Matrix located at the URL http://docs.sun.com. At the site, click on Storage and Peripherals, find Rackmount Placement Matrix among the AnswerBook2 collection titles, and click on the link to display the book.

You need to use the Rack Buddy to help decide at what height in the rack rail you will install the server slide assemblies (and other subsequent server slide assemblies). For example, an empty Sun cabinet might have 36 vertical RUs and could support up to nine servers. To maximize server density in a 72-inch (182.8-cm) rack, install the slide assembly brackets starting for the lowest enclosure at rail hole 3 (in an empty rack), and add subsequent brackets at rail holes 15, 27, 39, 51, 63, 75, 87, and 99.

18 Sun Enterprise 220R Server Owner’s Guide • October 1999