HP A9890A Smart Array 6400 Series Controllers User Guide - Page 17
Connecting storage devices, Connecting internal storage
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Installing the controller hardware 17 7. Replace the access panel, and secure it with screws if any are present. CAUTION: Do not operate the server for long periods without the access panel. Operating the server without the access panel results in improper airflow and improper cooling that can lead to thermal damage. Connecting storage devices The controller supports Ultra2, Ultra160 (Ultra3), and Ultra320 drives. Each peripheral that is connected to the controller must have a unique SCSI ID value within the range of 0 to 15 (except ID 7, which is reserved for controller use). This value determines the priority that is given to the device when it attempts to use the SCSI bus. The system automatically sets the SCSI IDs for hot-pluggable devices if they are supported. For non-hot-pluggable devices, you must set the ID values manually by using switches or jumpers on the device itself. SCSI buses require termination on both ends to prevent signal degradation. In HP ProLiant and Integrity servers, however, the controller, SCSI cable, and backplane already provide this termination. Connecting internal storage 1. If the storage device that you are adding is not hot-pluggable, power down the system. 2. Install drives in the removable media bays on the server. CAUTION: Do not use hot-pluggable drives on the same SCSI bus as non-hot-pluggable drives. NOTE: Drives that are to be grouped in the same array should all have comparable capacity for efficient use of total storage capacity. For additional information about drive installation, refer to the appropriate section in this guide ("Replacing, moving, or adding hard drives" on page 39) and consult the documentation that accompanied the drives.