Hard Disk Sentinel Help - Logical drive

On the information panel the details of the selected logical drive are displayed, including the associated physical hard disk(s) (in case of a striped or mirrored volume the logical drive may be associated with more physical disks), what is the volume type, name, serial number. The total and free space information are also displayed in this window.

Hard Disk Sentinel also displays the partition style (MBR or GPT), volume type, partition alignment (to help in case of performance issues when drive with 4 KBytes sectors (4K drives) used. Hard Disk Sentinel shows the allocation unit (cluster) size (which is the smallest section used by a file if its size is smaller than this value) and total, available, free allocation units too.