Abstract: Disclosed are systems and methods for providing read-modify-writes during relocation of overlapping of logical blocks. A method includes receiving a host write command from a host interface. The method also includes translating a logical block address for the host write command to a physical address on a device memory. The physical address corresponds to a plurality of indirection units. The method also includes, 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.

Abstract: Disclosed are systems and methods for providing read-modify-writes during relocation of overlapping of logical blocks. A method includes receiving a host write command from a host interface. The method also includes translating a logical block address for the host write command to a physical address on a device memory. The physical address corresponds to a plurality of indirection units. The method also includes, 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.

Abstract: The method, apparatus, and system disclosed herein relate to a faster and more predictable way to achieve synchronous phase from non-synchronous phase for synchronous data replication between a source volume and a destination volume. Consistency data and replication data are sent in parallel during a pre-synchronous phase to reestablish a synchronous phase of operation. Sequence identifiers and consistency sequence identifiers are used to determine whether to write consistency data to the destination volume, or to leave consistency data unwritten for blocks already updated with replication data during the process of reestablishing synchronization.

Abstract: The method, apparatus, and system disclosed herein relate to a faster and more predictable way to achieve synchronous phase from non-synchronous phase for synchronous data replication between a source volume and a destination volume. Consistency data and replication data are sent in parallel during a pre-synchronous phase to reestablish a synchronous phase of operation. Sequence identifiers and consistency sequence identifiers are used to determine whether to write consistency data to the destination volume, or to leave consistency data unwritten for blocks already updated with replication data during the process of reestablishing synchronization.