A first set of physical units of a storage device of a storage system is selected for performance of low latency access operations, wherein other access operations are performed by remaining physical units of the storage device. A determination as to whether a triggering event has occurred that causes a selection of a new set of physical units of the storage device for the performance of low latency access operations is made. A second set of physical units of the storage device is selected for the performance of low latency access operations upon determining that the triggering event has occurred.

Methods and systems for a networked storage system are provided. One method includes: generating, by a first node, a dummy entry in a storage location cache of the first node, the dummy entry associated with a read request received by the first node for data stored using a logical object owned by a second node; receiving, by the first node, an invalidation request to invalidate any storage location entry associated with the data, the invalidation request sent in response to the second node receiving a write request to modify the data; invalidating, by the first node, the dummy entry; receiving, by the first node, a response to the read request from the second node with the requested data; and replacing, by the first node, the dummy entry with a storage location entry and invalidating the storage location entry based on the invalidated dummy entry.

A method may use memory efficiently to extend cache. A processor receives a request to write data. The size of the data in the write request is compared to a threshold. When the size of the data exceeds the threshold, the data is stored on a solid state device. Page descriptors for the data on the solid state device are stored in a metadata log, and a reference to a first page descriptor of the page descriptors in the metadata log is stored in a first hash table in memory.

A method, computer program product, and computing system for receiving a flush request for a metadata page stored in a storage array of a multi-node storage system. The flush request may be queued on a flush request lock queue on at least one node of the multi-node storage system. One or more flush requests may be processed, via multiple nodes of the multi-node storage system, on the metadata page based upon, at least in part, the flush request lock queue.

The present invention provides a control method of a server, wherein the server includes a write buffer for temporarily storing data from an electronic device, the write buffer has a plurality of sectors, and the write buffer has a write pointer and a flush pointer; and the control method comprises: setting each sector to have one of a plurality of states comprising an empty state, a merging state, a need-flush state and a flushing state; and referring to a state of a specific sector indicted by the write pointer to determine if ignoring the specific sector to directly process a sector after the specific sector.

A method for block addressing is provided. The method includes moving content of a data block referenced by a logical block address (LBA) from a first physical block corresponding to a first physical block address (PBA) to a second physical block corresponding to a second PBA, wherein prior to the moving a logical map maps the LBA to a middle block address (MBA) and a middle map maps the MBA to the first PBA and in response to the moving, updating the middle map to map the MBA to the second PBA instead of the first PBA.

A method, computer program product, and computing system for receiving a flush request for a metadata page stored in a storage array of a multi-node storage system. The flush request may be queued on a flush request lock queue on at least one node of the multi-node storage system. One or more flush requests may be processed, via multiple nodes of the multi-node storage system, on the metadata page based upon, at least in part, the flush request lock queue.

A method, computer program product, and computing system for assigning a plurality of unique sequential identifiers to a plurality of tablets in a cache memory system. One or more metadata deltas associated with a metadata page stored in a storage array may be written to the plurality of tablets in the cache memory system. Each metadata delta stored in at least one tablet of the plurality of tablets may be written to the metadata page stored in the storage array, thus defining one or more destage tablets. A largest unique sequential identifier from the plurality of unique sequential identifiers assigned to the one or more destage tablets, may be written to the storage array, thus defining a current tablet identifier for the metadata page.

A method, computer program product, and computer system for controlling, by a computing device, access to a non-volatile memory using a non-volatile lock as a reader of the non-volatile memory. Metadata (MD) non-volatile memory commits may be throttled until capacity of the non-volatile memory is at a threshold capacity.

Methods and systems for a networked storage system are provided. One method includes: utilizing, by a first node, a storage location cache to determine if an entry associated with a first read request for data stored using a logical object owned by a second node configured as a failover partner node of the first node exists; transmitting, by the first node, the first read request to the second node; receiving, by the first node, a response to the first read request from the second node with requested data; inserting, by the first node, an entry in the storage location cache indicating the storage location information for the data; and utilizing, by the first node, the inserted entry in the storage location cache to determine storage location of data requested by a second read request received by the first node.