IBM 86655RY Hardware Maintenance Manual - Page 78

• If you are installing a device with a 50-pin connector in one of the left front bays, you will need a 68-to-50-pin converter (option number 32G3925). • Your server supports ten 1-inch (26 mm) slim-high or seven 1.6-inch (42 mm) halfhigh, 3.5-inch hot-swap hard disk drives in the hot-swap bays. • The hot-swap bays connect to a hard disk drive backplane. The backplane is a printed circuit board behind the bays. Some drives have a special interface called small computer system interface, or SCSI. Using this interface, you can attach multiple drives to a single SCSI controller. Notes: 1.Any information about SCSI drives also applies to other SCSI devices, such as scanners and printers. 2.If you plan to install both internal and external SCSI devices, you must follow the instructions in "Connecting external options" on page 81, in addition to the instructions in this section. A 16-bit (wide) low voltage differential (LVD) SCSI cable connects the hard disk drive backplane to the ServeRaid adapter located in a PCI slot on the processor board. An additional 16-bit, two-drop SCSI cable comes with the server. It is located in the bottom of the server media bay and is restrained with a cable clamp. If you want to install SCSI devices in the removable media bays: 1. Locate the internal SCSI connector on the power backplane. 2. Use the 16-bit two-drop SCSI cable located in the bottom of the server media bay. 3. Connect the SCSI device(s) in the removable media bay to the internal SCSI connector on the power backplane. Installing a hot-swap hard disk drive Refer to the following illustration when installing a hot-swap drive. Before you begin: • Read "Safety information" on page 249. • Review the information in "Before you begin" on page 60. • Read the documentation that comes with the option. 68 Hardware Maintenance Manual: Netfinity 7600 - Type 8665 Models 1RY, 2RY