ASRock A75 Extreme6 RAID Installation Guide - Page 9

1.6 Viewing Drive Assignments From the Main Menu screen, press 1 to see the View Drive Assignments screen. This screen reports physical drive assignments and provides the following information: Port: ID - Shows the AMD motherboard port ID number to which a particular physical drive is attached. The total number of ports depends on the motherboard and whether a port multiplier is connected. Drive Model - Identifies the manufacturer, model, and model number (if applicable) of each physical drive. S.M.A.R.T. refers to the Self-Monitoring, Analysis and Reporting System that monitors the condition of disk drives. Healthy means the disk drive is OK. Capabilities - The type and speed of the physical drive, such as SATA 1.5 Gb/s, 3.0 Gb/s, or 6.0 Gb/s. Capacity (GB) - Reflects the capacity in GB (gigabytes) of the physical drive. Assignment - This field identifies the logical drive to which the physical drive belongs. In the example above, there is one logical drive composed of two physical drives. LD 1-2 means logical drive 1, physical drive 2. Unassigned drives are labeled Single Disk. You can use unassigned drives to create a new logical drive. Extent - An extent is a portion of the physical drive. The Option ROM Utility allows you to split the capacity of a physical drive between two logical drives. The portion of a physical drive available to be used in a logical drive is called an extent. The sum of the two extents is slightly smaller than the total capacity of the physical drive. 9