A segment is the amount of data, in kilobytes, that the controller writes on a single drive in a logical drive before writing data on the next drive. Data blocks store 512 bytes of data and are the smallest units of storage. The size of a segment determines how many data blocks it contains. For example, an 8K segment holds 16 data blocks, and a 64K segment holds 128 data blocks.
Important: The segment size was expressed in number of data blocks in previous versions of this storage management software. It is now expressed in kilobytes.
When you create a logical drive, the default segment size is a good choice for the expected logical drive usage. The default segment size can be changed using the Logical Drive >> Change Segment Size option. For more information, see Changing Segment Size on the How To tab.