Compaq ProLiant 7000 SMART-2DH Array Controller Reference Guide - Page 23

2-5 The original configuration in Figure 2-1 shows drive positions 0, 3, and 6 filled. The drives are moved to positions 0, 1, and 2. In both configurations, the relative order of the drives stays the same: a, then b, then c. This example would not work if the new configuration changed the relative orders of the drives, that is, b, then a, then c. The new positions can also span multiple buses as long as the relative order remains the same; in this case, think of drive IDs 0 and 1 on SCSI port 2 as IDs (positions) 7 and 8. SCSI cables cannot be interchanged if an array spans the two ports. Original Configuration New Configuration ID6 c ID6 ID5 ID5 ID4 ID4 ID3 b ID3 ID2 ID2 c ID1 ID1 b ID0 a ID0 a Figure 2-1. Maintaining relative drive order while moving drives within or between arrays When the above conditions are met, follow these steps to move drives: 1. Power system OFF. 2. Move drives. 3. Power system ON. A 1724 POST message should indicate that drive positions were changed and the configuration was updated. If the system comes up with a 1785 (Not Configured) POST message, turn the system off immediately to avoid data loss and return the drives to their original locations. 4. Run Array Configuration Utility to view the new drive configuration (optional). SMART-2DH Array Controller Reference Guide Writer: Pamela King Project: SMART-2DH Array Controller Reference Guide Comments: 295469-002 File Name: C-CH02.DOC Last Saved On: 2/27/98 11:25 AM COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED