Abstract: A method of migrating or consolidating cloud data includes generating a container on a cloud platform and receiving, at the container, source metadata identifying a set of data to be migrated from a source cloud bucket associated with a source data domain to a destination cloud bucket associated with a destination data domain. The method further includes copying, by the container, set of data from the source cloud bucket to the destination cloud bucket based on the source metadata and generating, by the container, destination metadata for the set of data as stored at the destination cloud bucket.

Abstract: Systems and methods for providing rehydration of a block storage device from external storage are disclosed. In one implementation, a processing device may receive, from a client computing device, a request to access a portion of data associated with a block-based repository in a distributed storage system, where the block-based repository is associated with an external data source that stores a backup of the block-based repository; determine that the portion of data is not present in the block-based repository; retrieve the portion of data from the external data source; provide the portion of data to the client computing device; and perform deep rehydration of the requested portion of data, wherein the deep rehydration reconstructs the portion of data in the block-based repository using the external data source.

Abstract: Selective instantiation of a mapped cluster storage service (MCSS) is disclosed for storage system supporting a doubly mapped redundant array of independent nodes environment. An instance of a MCSS can be run on computing resources of the storage system supporting a doubly mapped redundant array of independent nodes environment, wherein a real node of a real cluster comprises a real storage device that comprises real extents, and wherein extents of the storage system map to a mapped node of a mapped cluster. The instance of the MCSS can be run near to the highest number of real extents participating in a mapped node. This can reduce computing resource consumption associated with running the MCSS farther from the more concentrated real extents.

Abstract: An object of the invention is to optimize a storage cost for data. There is provided a storage system including a storage device, a memory, and a processor configured to control input and output of data to and from the storage device. The processor monitors a storage amount that is at least one of a write amount (a total amount of data received as a write target) and a physical use amount (a total amount of data physically stored in the storage device), and a read amount (a total amount of data that is read), and calculates a fee as a storage cost that is a cost related to use of the storage device in a target period, based on a storage amount and a read amount in the target period in accordance with a monitoring result.

Abstract: A mapped redundant array of independent nodes (mapped RAIN) for data storage is disclosed. A mapped RAIN cluster can be allocated on top of one or more real data clusters, wherein the real clusters can comprise storage devices of different storage capacities. Mapping of data storage locations for a mapped RAIN cluster to real storage devices can be based on an affinity value determined for pairs of real nodes of the real data clusters. A normalized affinity can be employed to enable allocation of real storage to mapped nodes of mapped clusters that can be based on the heterogeneous capacities of the storage devices. This can provide improved data availability and data recovery over other techniques where heterogeneity of hardware can make efficient resource allocation a non-trivial task. The disclosed subject matter can facilitate more efficient allocation of Mapped RAINs in a heterogeneous cluster storage construct.

Abstract: A node includes storage that stores a portion of high accessibility data that is divided into revisions and managed based on an activity state model. The node also includes a repository manager that keys read requests of the data access requests for the high accessibility data to a revision of the revisions of the portion of the high accessibility data based on an activity state associated with the portion of the high accessibility data when the read requests are obtained to obtain keyed read requests; keys write requests for the high accessibility data to future revisions of the revisions of the high accessibility data when the write requests are obtained to obtain keyed write requests; adds the keyed read requests to a read queue; adds the keyed write requests to a delayed action queue; and processes the read queue and the delayed action queue to service the requests.

Abstract: Techniques for processing I/O operations in a data storage system may include: receiving I/O operations directed to a logical device associated with a service level specifying a target I/O response time goal; receiving a input identifying whether to calculate an observed I/O response time for the logical device using only an internal processing time associated with processing performed within the data storage system when servicing I/O operations directed to the logical device; determining, in accordance with the input and the I/O operations directed to the logical device, the observed I/O response time for the logical device; determining a service level violation for the first logical device whereby the observed I/O response time violates the service level; and responsive to determining the service level violation whereby the observed I/O response time violates the service level, performing processing to alleviate or remove the first service level violation.

Abstract: Embodiments include a method, an electronic device, and a computer program product for storage management. According to one embodiment of the present disclosure, a method for storage management includes: determining at a kernel of a storage server whether a first system call related to a target file is initiated by a thread executed in the storage server, wherein the target file is a file targeted by an accessing operation executed by a client terminal with respect to a storage device; determining a first connection and a second connection that are associated with the target file if the first system call is initiated, wherein the first connection is a connection between the client terminal and the storage server, and the second connection is a connection between the storage server and the storage device; and causing the client terminal to access the target file via the first connection and the second connection.

Abstract: An apparatus is described that includes a memory card. The memory card also includes volatile memory devices. The memory card also includes non volatile memory devices. The memory card is configurable to implement a first portion of the storage space of the non volatile memory devices as system memory. The memory card also includes a controller to manage, upon a power down event, the transfer of information from the volatile memory devices into a second portion of the storage space of the non volatile memory devices.

Abstract: Some implementations relate to storage of data in a storage device with a plurality of chips. In some implementations, a computer-implemented method includes identifying a plurality of software applications that are configured to access data from the storage device, determining a data access pattern for each of the plurality of software applications, and based on the data access pattern, assigning a respective subset of the plurality of storage chips to each software application such that each storage chip is configured for access by a specific software application.

Abstract: This disclosure relates to a data storage method and apparatus, and a server. The method includes receiving, by a first server, a write instruction sent by a second server, storing target data in a cache of a controller, detecting a read instruction for the target data, and storing the target data in a storage medium of a non-volatile memory based on the read instruction. In other words, when the second server needs to write the target data to the first server, the target data is not only written to the cache of the first server, but also written to the storage medium of the first server. This can ensure that the data in the cache is written to the storage medium promptly.

Abstract: Emulating persistent reservations in a cloud-based storage system, including: acquiring, by a first storage controller, in response to a request for a Small Computer Systems Interface (SCSI) persistent reservation, a first lease for an area of storage of a cloud-based storage system; and storing, by the first storage controller, a first identifier for the first lease in a predefined portion of the area of storage, wherein the predefined portion of the area of storage is accessible to a second storage controller.

Abstract: Apparatuses and methods related to updating data lines for data generation in, for example, a memory device or a computing system that includes a memory device. Updating data lines can include updating a plurality of data lines. The plurality of data lines can provide data form the memory array responsive to a receipt of the access command. The plurality of data lines can also be updated responsive to a determination that an access command received at a memory device is unauthorized.

Abstract: A method and system for storage load balancing based on virtual synthetics metadata. When storing data onto a storage cluster, data submitted thereto may often be distributed unevenly across the constituent storage nodes thereof. To address the issue, some form of load balancing (or re-distribution of data) across the storage nodes may be implemented. Existing load balancing techniques, however, tend to migrate data between storage nodes without consideration for the efficient utilization of available storage space on the storage node where the data ends up (or destination storage node). Accordingly, the disclosed method and system propose a load balancing mechanism whereby the migrated data dedupes well, thereby securing the efficient consumption of storage space on the destination storage node.

Abstract: A self-relocating data center and method is provided. In implementations, a method includes: receiving input data from a data center over a period of time, the input data including sensor data; determining parameter data sets based on the input data, the parameter data sets reflecting operating states of resources of the data center over the period of time; determining dependencies between the parameter data sets using a stacked long short term memory (LSTM) process; generating a model based on the dependencies between the respective parameter data sets and stored target data parameters; determining an event based on an output of the model and the stored target parameter data, wherein an input to the model is real-time input data received from the data center; and initiating a self-relocating event to automatically relocate data of the data center to a secondary data center without human intervention based on the event.

Abstract: The Portable Raid Online Storage (PROS) Unit is a new design in mobile storage. It is the first completely portable and completely self-contained Raid Storage system using a chipset with a Raid Controller, Memory and IOP chips. IO uses a PCIe path using a USB-C (usb 3.1) connector. It is made to go into the field with, and sit under the host computer thus taking very little space. It provides up to 14TBs of Raid 0, 1, or Raid 5 parity storage. Raid 5 will work with Parity to protect the data in case of a Drive Failure. The PROS unit will use NVMe SSD Drives for faster read/write. The size of the device is 14 inches by 9 inches by ˜0.5 inches. Or 35.56 cm×22.86 cm×13 mm. The PROS Unit will be powered via the USB-C port to a 120 v AC power source.

Abstract: A data access system including a processor and a storage system including a main memory and a cache module. The cache module includes a FLC controller and a cache. The cache is configured as a FLC to be accessed prior to accessing the main memory. The processor is coupled to levels of cache separate from the FLC. The processor generates, in response to data required by the processor not being in the levels of cache, a physical address corresponding to a physical location in the storage system. The FLC controller generates a virtual address based on the physical address. The virtual address corresponds to a physical location within the FLC or the main memory. The cache module causes, in response to the virtual address not corresponding to the physical location within the FLC, the data required by the processor to be retrieved from the main memory.

Abstract: Provided herein may be a storage device configured to perform a cache read operation by each memory device. The storage device may include a plurality of memory devices each including a plurality of memory blocks, and a memory controller configured to store and set cache setting information for each of the plurality of memory device, and control the plurality of memory devices such that, as a read operation on a select one of the plurality of memory devices, one of a cache read operation and a normal read operation is performed based on the cache setting information set for of the select memory device.

Abstract: A method for managing a readahead cache in a memory subsystem based on one or more active streams of read commands is described. The method includes receiving a read command that requests data from a memory component and determining whether the read command is part of an active stream of read commands based on a comparison of a set of addresses of the read command with one or more of (1) a command history table, which stores a set of command entries that each correspond to a received read command that has not been associated with an active stream, or (2) an active stream table, which stores a set of stream entries that each corresponds to active streams of read commands. The method further includes modifying a stream entry in the set of stream entries in response to determining that the read command is part of an active stream.

Abstract: A storage system includes solid-state storage devices and a storage controller operatively coupled to the solid-state storage devices, the storage controller including a processing device, the processing device to receive, from a solid-state storage device of the solid-state storage devices, an indication of an occurrence of triggering event associated with data stored at a first data block of the solid-state storage device. In response to receiving the indication of the occurrence of the triggering event, a second data block of the solid-state storage device is identified for storage of the data. A command in transmitted to the solid-state storage device that includes address information associated with the second data block of the solid-state storage device for storage of the data, wherein the command causes the solid-state storage device to program the data to the second data block.