Optimized Read-Modify-Writes During Relocation of Overlapping Logical Blocks

A method implemented using one or more controllers for one or more storage devices, the method comprising:

• receiving a host write command from a host interface;
• translating a logical block address for the host write command to a physical address on a device memory, wherein the physical address corresponds to a plurality of indirection units;
• and
• in accordance with a determination that the physical address does not correspond to an aligned address, processing a read-modify-write operation for one or more indirection units of the plurality of indirection units during a relocation, in accordance with a determination that a relocation block has an overlapping indirection unit with the one or more indirection units.

A system, comprising:

• means for receiving a host write command from a host interface;
• means for translating a logical block address for the host write command to a physical address on a device memory, wherein the physical address corresponds to a plurality of indirection units;
• and
• means for, in accordance with a determination that the physical address does not correspond to an aligned address, processing a read-modify-write operation for one or more indirection units of the plurality of indirection units during a relocation, in accordance with a determination that a relocation block has an overlapping indirection unit with the one or more indirection units.