Method of increasing operational life time of SSD raid and storage equipment using same

A method of increasing operational life time of SSD RAID, which is implemented by using a control unit in a data storage device to execute a software program, and the data storage device has a plurality of solid-state disks, the method including:

• configuring the data storage device to have a plurality of storage areas, each of the storage areas including a plurality of stripes, each of the stripes including an individual block of each of the solid state disks, where at least one of the blocks in each of the stripes is a check bit block, the other of the blocks are data blocks, and the check bit block is used to store check bit data of the data blocks;
• and
• configuring two neighboring ones of the stripes in each of the storage areas to form a composite stripe according to a plurality of index combinations in a mapping table, where the composite stripe includes two neighboring ones of the blocks in each of the solid state disks, and the composite stripe is divided into a stripe writing area and an empty stripe area, the stripe writing area including at least one check bit sub-area, a plurality of data sub-areas, and a reserved sub-area, where a total storage capacity of the plurality of data sub-areas is equal to a total storage capacity of the plurality of data blocks in each of the stripes, and the empty stripe area includes at least one first empty area, a plurality of second empty areas and a third empty area corresponding to the at least one check bit sub-area, the plurality of data sub-areas and the reserved sub-area respectively, so that each of the solid state disks in each of the storage areas has a reserved space;
• wherein a first data sub-area of the plurality of data sub-areas of the stripe writing area has a first storage capacity, each of a plurality of second data sub-areas of the plurality of data sub-areas of the stripe writing area has a second storage capacity, the first storage capacity is greater than the second storage capacity, and the check bit sub-area of the stripe writing area has the first storage capacity.