9-6 Upgrading Your ServerThe hard disk drive bays are connected to the SCSI connector on the mother board when the serveris shipped. To use the hard disk drives in a disk array configuration, reconnect the cable from theconnector on the mother board to which the SCSI controller is connected to the disk array controllerconnector. For the cable reconnection, see "Disk Array Controller".A dummy block or tray is installed in the hard disk drive bays. The purpose of a dummy block is toincrease the cooling effect in the server. Install a dummy block in slots not containing a hard diskdrive.Installation (SCSI hot-plug HDD model)Take the following steps to install a hard disk drive. This procedure applies to all the hard disk drivebays. See the next section for the procedure installing a hard disk drive in the flex bay.NOTE: Any hard disk can be installed or removed in or from the serveronly by removing the front bezel.IMPORTANT: In the disk array configuration, use the hard disks having the samespecification including the capacity. Do not press the POWER switch during the installation or removalof the hard disk drive if your server is running.1. See the section "Preparing for Installation and Removal" described earlier to prepare.2. Unlock the front bezel with the security key and remove the front bezel.3. Locate the slot in which you are going to install a hard disk drive.The server has three slots. Install hard disk drives in ascending order of the SCSI IDnumbers starting from the leftmost slot. The SCSI IDs assigned to the slots are alldetermined.4. Remove the dummy block or tray if installed.IMPORTANT: Keep the dummy block for future use.5. Unlock the hard disk drive handle.
