3Ware 9550SXU-12 User Guide - Page 103

Setting the Auto Rebuild Policy To view controller polices in 3BM You can also view and change these controller polices in 3BM, as shown in Figure 39. 1 On the main 3BM screen, Tab to Settings and press Enter. 2 On the pop-up menu, select Controller Policies and press Enter. The Policy Control screen displays. Figure 39. 3BM Policy Control Screen Setting the Auto Rebuild Policy The Auto Rebuild policy determines how the controller firmware will attempt to rebuild degraded units. When Auto Rebuild is disabled, only spares will be automatically used to rebuild degraded units. When Auto Rebuild is enabled, the firmware will select drives to use for automatically rebuilding a degraded unit using the following priority order. • Smallest usable spare. • Smallest usable unconfigured (available) drive. • Smallest usable failed drive. Enabling Auto Rebuild allows you to add a drive to the controller and have it be available for a rebuild, without having to specify it as a spare. With Auto Rebuild enabled, if you accidentally disconnect a drive (causing the controller to see it as a failed drive) and then reconnect it, the controller will automatically try to use it again. You can enable or disable the Auto-Rebuild policy through 3DM or 3BM. www.3ware.com 91