IBM 847651U Handbook - Page 146

Installing or removing internal drives When you install devices in bays 2, 3, 5, and 6, you must disable the termination for the devices before you install them. If you connected external SCSI devices to your server, set the termination for the last device on the external cable to Enabled. See the device documentation for instructions. If you plan to install both 16-bit (wide) and 8-bit (narrow) SCSI devices: 1. Attach the 16-bit devices at the beginning of the SCSI chain. 2. Attach the 8-bit devices at the end of the SCSI chain. Note: The beginning of the SCSI chain is the end closest to the SCSI adapter or the system board. This enables the UltraSCSI adapter to recognize all of the devices in the SCSI chain, and thus ensures proper server operation. Refer to the instructions that come with the SCSI device for more information about termination. Preinstallation steps (all bays) Before you begin, be sure you have: Read "Electrical safety" on page 70 and "Handling static-sensitive devices" on page 71. Read the documentation that comes with the option. Read "Termination requirements" on page 111. Verified that you have all cables, drive trays, and any other equipment specified in the documentation that comes with the internal drive. Before you can install drives in your Netfinity 3000 server, you might need to perform certain preinstallation activities. Some of the steps are required only during the initial installation of an option. 1. Remove the server side cover (see "Disconnecting cables and removing the side cover" on page 74). 112 Netfinity 3000 User's Handbook