Computer-implemented methods for optimized compute resource addition and removal in a distributed storage platform. In a case of a newly added compute resource being connected to a storage subsystem shared by compute resources in the distributed storage platform, the distributed storage platform formulates a redistribution plan to redistribute a subset of a global address space of the storage subsystem to a newly added logical volume in the storage subsystem. In a case of a removed compute resource being disconnected from the storage subsystem, the distributed storage platform formulates a redistribution plan to redistribute respective logical blocks in a logical volume for the removed compute resource to respective remaining logical volumes for respective remaining compute resources in the distributed storage platform. The distributed storage platform executes the redistribution plan to reassign data block ownerships on one or more physical memory devices in the storage subsystem.

A system includes a memory device, and a processing device, operatively coupled to the memory device, to perform operations including receiving a request to sequentially write data to a block of a memory device, in response to receiving the request, writing the data to the block to obtain sequentially written data, initiating accumulation of logical-to-physical (L2P) mapping data corresponding to the sequentially written data, determining that a criterion for terminating the accumulation of the L2P mapping data is satisfied, in response to determining that the criterion is satisfied, terminating the accumulation of the L2P mapping data to obtain accumulated L2P mapping data, and updating an L2P mapping data structure based on the accumulated L2P mapping data.

A system and method for offset protection data in a RAID array. A computer system comprises client computers and data storage arrays coupled to one another via a network. A data storage array utilizes solid-state drives and Flash memory cells for data storage. A storage controller within a data storage array is configured to store user data in a first page of a first storage device of the plurality of storage devices; generate intra-device protection data corresponding to the user data, and store the intra-device protection data at a first offset within the first page. The controller is further configured to generate inter-device protection data corresponding to the first page, and store the inter-device protection data at a second offset within a second page in a second storage device of the plurality of storage devices, wherein the first offset is different from the second offset.

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.

According to one embodiment, a memory system includes a non-volatile memory array with a plurality of memory cells. Each memory cell is a multilevel cell to which multibit data can be written. The non-volatile memory array includes a first storage region in which the multibit data of a first bit level is written and a second storage region in which data of a second bit level less than the first bit level is written. A memory controller is configured to move pieces of data from the first storage region to the second storage region based on the number of data read requests for the pieces of data received over a period of time or on external information received from a host device that sends read requests.

Techniques for providing data loss prevention, including data exfiltration prevention and crypto-ransomware prevention, are provided. In some embodiments, a slack-space file system is created by using a modified packing algorithm to increase and/or optimize an amount of slack space created by files stored in a standard file system. A program for accessing and indexing the slack-space file system may be stored, and requests by a user to store data on a storage medium of a computer system may cause the information to be stored in the slack-space file system, where it may be protected from destructive malware that operates solely on the standard file system. In some embodiments, sensitive information may be hidden by storing the information in an alternate data stream of a file and by replacing the information in the unnamed data stream of the file with non-sensitive information that may appear to be sensitive.

Embodiments of the present disclosure relate to a memory system and an operating method of the memory system. According to embodiments of the present disclosure, a memory system may divide and manage the plurality of memory dies into a plurality of memory die groups, may set a first super memory block including at least one of memory blocks included in a first memory die group, and a second super memory block including at least one of memory blocks included in a second memory die group, may determine whether to set an extended super memory block in which all or part of the first super memory block and all or part of the second super memory block are merged, and may write a write data to the extended super memory block in an interleaving manner when writing the write data requested by a host.

A storage device is described. The storage device may store data in a storage memory, and may have a host interface to manage communications between the storage device and a host machine. The storage device may also include a translation layer to translate addresses between the host machine and the storage memory, and a storage interface to access data from the storage memory. An in-storage monitoring engine may determine characteristics of the storage device, such as latency, bandwidth, and retention.

A composite layout to store one or more extents of a data object in a first storage system and one or more extents of the data object in a second, different storage system. The first storage system may be configured for the efficient storage of small chunks of data such as, e.g., chunks of data small than the addressable block size of the storage devices used by the storage systems.

Disclosed herein are techniques for managing context information for data stored within a non-volatile memory of a computing device. According to some embodiments, the method can include (1) loading, into a volatile memory of the computing device, the context information from the non-volatile memory, where the context information is separated into a plurality of silos, (2) writing transactions into a log stored within the non-volatile memory, and (3) each time a condition is satisfied: (i) identifying a next silo of the plurality of silos to be written into the non-volatile memory, (ii) updating the next silo to reflect the transactions that apply to the next silo, and (iii) writing the next silo into the non-volatile memory. In turn, when an inadvertent shutdown of the computing device occurs, the silos of which the context information is comprised can be sequentially accessed and restored in an efficient manner.