Asus PCI-DA2100 User Manual - Page 22

3 3.3 Disk Array Parameters 3.3.1 Rebuild Priority Rebuilding time will depend on the capacity of the logical drive. The ASUS PCI-DA2100/-DA2200 RAID controller provides background rebuilding ability. Meaning, the controller is able to serve other I/O requests while rebuilding the logical drives. The rebuilding process is totally transparent to the host computer or the operating system. The background rebuild process has four priority options: • Low • Normal • Improved • High The default priority is "Low" which uses the controller's minimum resources to rebuild. Choosing "Normal" or "Improved" will speedup the rebuilding process and choosing "High" will use the controller's maximum resources to complete the rebuilding process at the shortest time. Rebuild priority can be configured through either the Text RAID Manager or the GUI RAID Manager. 3.3.2 Verify-after-Write The controller has the ability to force the hard drives to verify after data has been written to the media of the HDD. There are three selectable methods: • Verification on LD Initialization Writes Performs Verify-after-Write while initializing the logical drive. • Verification on LD Rebuild Writes Performs Verify-after-Write during the rebuilding process. • Verification on LD Normal Drive Writes Performs Verify-after-Write during normal I/O requests. Each method can be enabled or disabled individually. Hard drives will perform Verify-after-Write according to the selected method. 22 ASUS PCI-DA2100/PCI-DA2200 User's Manual