IBM 7979B1U User Manual - Page 17
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Chapter 1. The System x3650 Type 7979 server The IBM® System x3650 Type 7979 server is a 2-U1-high server that is ideally suited for networking environments that require superior microprocessor performance, efficient memory management, and flexibility. The server has two model styles, which are based on the size and number of hard disk drive bays: v The 3.5-inch models 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. v The 2.5-inch models 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. The server contains IBM X-Architecture™ technologies, which help increase performance and reliability. For more information, see "What your server offers" on page 5 and "Reliability, availability, and serviceability features" on page 7. You can obtain up-to-date information about the server and other IBM server products at http://www.ibm.com/systems/x/. 1. Racks are measured in vertical increments of 1.75 inches each. Each increment is called a "U". A 1-U-high device is 1.75 inches tall. © Copyright IBM Corp. 2007 1