Abstract: Disclosed herein are systems and method for adjusting storage volume size of an application instance. A method may include: identifying a first application instance running on a computing device, wherein the first application instance has an assigned first storage volume on a device storage of the computing device; collecting, over a period of time, usage data of the device storage; determining, based on the collected usage data, whether a usage capacity of the first storage volume of the first application instance is reaching a maximum capacity of the first storage volume; in response to determining that the usage capacity of the first storage volume is reaching the maximum capacity of the first storage volume, adjusting a size of the first storage volume by a first amount to accommodate usage of the first application instance.

Abstract: A data storage apparatus includes storage including a plurality of memory blocks and a controller configured to set an attribute of each of the memory blocks as a random memory block or a sequential memory block, and to manage validity of map data for data stored in each of the memory blocks using a map segment bitmap. The controller configures at least one memory block set by combining a set number of memory blocks, as a housekeeping event is triggered, and selects a victim block set from the at least one memory block set based on continuity of a logical address, or a number of valid map data, or both.

Abstract: A logical table is configured with a first set of memory banks, where each logical row in the logical table comprises a corresponding memory row from each of the memory banks. Lookup instructions to access a logical row includes a bank set that lists the memory banks associated with that logical row. In response to a range of memory rows of one of the memory banks being reallocated to another logical table, a new memory bank is identified to store the data in the reallocated memory rows. Logical rows associated with the reallocated memory rows are mapped to the new memory bank. Bank sets in the lookup instructions that refer to the remapped logical rows are updated to list the new memory bank in place of the “old” memory bank.

Abstract: A block storage service can ensure volumes are placed in a same region as an attached virtual machine instance for performance and durability guarantees. A region can reference multiple things, but one example is that a volume is within a same spine as a virtual machine in order to meet performance guarantees. Each region can have a buffer of server computers held in reserve for volumes having a type where performance guarantees are required. If performance guarantees cannot be met, a rejection is transmitted to the customer. In another embodiment, the customer can provide a list in priority order of different volume types so that if a desired volume type cannot be placed, then alternative volume types can be used.

Abstract: A storage device includes: a memory device including a plurality of memory blocks organized into a plurality of zones; and a memory controller configured to perform a write operation on the plurality of zones. The memory controller is operable to divide at least one zone among the plurality of zones into subzones when the memory controller receives data corresponding to consecutive logical addresses provided from a host, and control the memory device to store the data in at least one subzone among the subzones. The at least one zone can be divided based on a characteristic of the memory device and a size of the data.

Abstract: Described is a system for predictive storage policy selection for a cloud-based storage based on backup monitoring. The system may reduce storage costs incurred by a subscriber of a backup service that leverages a cloud-based storage. The system may monitor backup operations and collect backup statistics associated with the resource requirements of performing a backup to a cloud-based storage. To collect such information, the system may execute a specialized monitoring process that works in conjunction with a backup application and/or server. The collected information may be stored as part of a metadata database associated with the object storage. Accordingly, the system may retrieve the information from the metadata database to predict storage costs associated with performing future backup operations. Based on the predicted storage costs, the system may automatically select an appropriate storage policy.

Abstract: A method for identifying a connection slot used by a hard disk includes determining the name of a program or system kernel connected to a hard disk; determining slot information corresponding to the kernel name; generating a soft link relating the kernel name to the slot information. The soft link has a relationship with and coexists with the kernel name. A terminal device and a non-volatile storage medium therein, for performing the above-described method, are also disclosed.

Abstract: Methods, systems, and devices for input/output line sharing for memory subarrays are described. I/O lines may be shared across subarrays, which may correspond to separate memory tiles. The sharing of I/O lines may allow an I/O line to carry data from one subarray in response to access commands associated with one address range, and to carry data from another subarray in response to access commands associated with another address range. In some cases, sense amplifiers and other components may also be shared across subarrays, including across subarrays in different banks. The sharing of I/O lines may, in some cases, support activating only a subset of subarrays in a bank when accessing data stored in the bank, which may provide power savings.

Abstract: One or more techniques and/or computing devices are provided for utilizing snapshots for data integrity validation and/or faster application recovery. For example, a first storage controller, hosting first storage, has a synchronous replication relationship with a second storage controller hosting second storage. A snapshot replication policy rule is defined to specify that a replication label is to be used for snapshot create requests, targeting the first storage, that are to be replicated to the second storage. A snapshot creation policy is created to issue snapshot create requests comprising the replication label. Thus a snapshot of the first storage and a replication snapshot of the second storage are created based upon a snapshot create request comprising the replication label. The snapshot and the replication snapshot may be compared for data integrity validation (e.g., determine whether the snapshots comprise the same data) and/or quickly recovering an application after a disaster.

Abstract: A storage system determines a memory fragmentation level for each of a plurality of logical block address ranges. The memory fragmentation level for a given logical block address range is determined according to the number of memory senses required to read that logical block address range in its current state of fragmentation and the number of memory senses required to read that logical block address range assuming no fragmentation. The memory fragmentation level correlates to the sequential read performance for that logical block address range in that an increase in the memory fragmentation level results in a decrease in sequential read performance.

Abstract: In a computer system that includes a set of cross repositories for data storage, a document is broken into portions, and each portion is stored in at least one repository (and preferably many or all of the cross repositories). In this way, when a portion of the document requires an update, the communication of updated data can be limited to the relevant portion(s) of the document. Also, if a user requires only certain portion(s) of the saved document, then the data transfer from a cross repository to the user can be limited to those certain portion(s) of the document.

Abstract: Systems and methods for storing data in an intermediate format for storing, converting the intermediate data format into a production data format of two data volumes, and merging the two data volumes into one data volume.

Abstract: One example method includes an interface for mounting virtual disks from multiple sources. The interface may interface with different sources using appropriate programming interfaces. The virtual disks are then mounted in the interface. The virtual disks can be analyzed to identify the associated partitions. Volume configurations are determined for the partitions. The files for the partitions are remounted in the interface.

Abstract: A phase training update circuit operates during a self-refresh cycle of a memory to perform a phase training update on individual bit lanes. The phase training update circuit adjusts a bit lane transmit phase offset forward a designated number of phase steps, transmits a training pattern, and determines a first number of errors in the transmission. It also adjusts the bit lane transmit phase offset backward the designated number of phase steps, transmits the training pattern, and determines a second number of errors in the transmission. Responsive to a difference between the first number of errors and the second number of errors, the phase training update circuits adjusts a center phase position for the bit lane transmit phase offset of the selected bit lane.

Abstract: One or more performance parameters associated with data stored at a storage device of a plurality of storage devices are received by a storage controller. A first number of blocks of the storage device to a high resiliency portion and a second number of blocks of the storage device to a low resiliency portion of the storage device are allocated based on the one or more performance parameters.

Abstract: In accordance with an embodiment, described herein are systems and methods for providing tiered data storage in cloud infrastructure environments. A data storage service (block store) is adapted to automatically adjust the manner by which the data for a data volume or block volume (data/block volume), associated with a cloud instance, can be stored to meet the requirements of a performance tier. For example, responsive to selection of a particular performance tier, the storage of the data/block volume can be allocated between a first type of data storage associated with a first performance characteristics; and a second type of data storage associated with a second performance characteristics. A graphical user interface enables configuring data/block volumes to use particular performance tiers, and/or to support automatic tuning.

Abstract: A method of operating a nonvolatile memory device is provided. The method includes: dividing a memory block of a plurality of memory blocks provided in the nonvolatile memory device into a plurality of retention groups; generating time-difference information including a plurality of erase program interval (EPI) values corresponding to the plurality of retention groups; generating offset information including a plurality of offset values corresponding to differences between a plurality of default read voltages and a plurality of corrected read voltages; generating compensated read voltages corresponding to a read address based on the offset information and the time-difference information; and performing a read operation to read data from the nonvolatile memory device based on the read address and the compensated read voltages.

Abstract: Aspects of the present disclosure configure a system component, such as a memory sub-system controller, to provide adaptive media management based on temperature-related memory component capabilities. The controller can obtain a write temperature associated with an individual group of memory components. Based on the write temperature and a temperature threshold associated with the individual group of memory components, the controller can select an individual media management operation to perform.

Abstract: Methods, systems, and apparatuses related to runtime selection of memory devices and storage devices in a disaggregated memory system are described. For example, a controller can be coupled to a plurality of memory device and a plurality of storage devices. The controller can receive signaling indicative of a memory request corresponding to execution of an application. Responsive to receiving the signaling indicative of the memory request, the controller can select a memory device or a storage device, or both, selecting from the plurality of memory devices or the plurality of storage devices, or both, to perform a memory operation associated with the memory request. Responsive to receiving the memory request and selecting the memory device or the storage device, or both, the controller can perform the memory operation using the selected memory device or the selected storage device, or both.

Abstract: Facilitation of reclaiming of storage space is enabled relative to one or more data streams employing the storage space. A system can comprise a processor, and a memory that stores computer executable instructions that, when executed by the processor, facilitate performance of operations. The operations can comprise determining posting or non-posting of one or more specified cut positions from readers of events thus far appended to a stream of a stream storage system. The operations can further comprise, in response to the one or more specified cut positions being posted, truncating the stream based on the specified cut positions of the stream, and, in response to no specified cut positions being posted, truncating the stream based on a time limit or a space limit relative to a respective time quantity or a respective space quantity of the stream.