US Patent 9223698 SSD-block aligned writes

An SSD, comprising a mapping module and a controller, mapping module is capable of mapping a plurality of SSD-block aligned groups, each comprises a specific sequence of LBAs, to SSD blocks. The controller is capable of determining whether a LBA referenced in an incoming write request is a first LBA in a respective group, and if so, the controller is capable of: opening an ongoing SSD-block aligned write session; assigning a SSD block to the session; and recording in the session's data an indication of which LBA is associated with the write data that was saved to the SSD. In case the LBA referenced in the incoming write request is not the first LBA in the respective group, but is a successor of a latest-saved LBA of the group, storing the write data in sequence with a latest used segment of the SSD-block that was assigned to the group.