Lenovo manual The ThinkServer RD120 server, Lenovo 2008, 2009. Portions IBM Corp

Chapter 1. The ThinkServer RD120 server

The Lenovo® ThinkServer™ RD120 (Machine Types 6444, 6445, 6446, and 6447) server is a 5-U-high, high-performance server. It is ideally suited for networking environments that require superior microprocessor performance, improved systems management, and flexible memory and data management.

The server has two model styles, which are based on the size and number of hard disk drive bays:

vThe 3.5-inchmodels have six 3.5-inch hot-swap hard disk drive bays. Install only 3.5-inch drives in these models. If you intend to install an optional tape drive, the tape drive will occupy two of the six 3.5-inch drive bays.

vThe 2.5-inchmodels have eight 2.5-inch hot-swap hard disk drive bays and one 3.5-inch tape-drive bay. Install only 2.5-inch hard disk drives and an optional 3.5-inch tape drive in these models.

Throughout this documentation, the terms 2.5-inch models and 3.5-inch models will be used to distinguish between the server styles.

Performance, ease of use, reliability, and expansion capabilities were key considerations in the design of the server. These design features make it possible for you to customize the system hardware to meet your needs today and provide flexible expansion capabilities for the future.

The server comes with a limited warranty. For information about the terms of the warranty and getting service and assistance, see the Warranty and Support Information document.

You can obtain up-to-date information about the server and other Lenovo server products at: http://www.lenovo.com/thinkserver.

Attention: The information in this document regarding installing and removing power supplies and connecting and disconnecting power refers to ac power supplies only. If the server contains dc power supplies, see the documentation that comes with the dc power supplies. In a dc power environment, only trained service personnel other than Lenovo service technicians are authorized to connect or disconnect power to the dc power supply and to install and remove a dc power supply.

1.Racks are measured in vertical increments of 4.45 cm (1.75 inches) each. Each increment is called a ″U.″ A 1-U-high device is 1.75 inches tall.

© Lenovo 2008, 2009. Portions © IBM Corp. 2008. 1