A container storage system that provides storage services to a container system provides data resiliency using storage pools based on: detecting an interruption to storage services associated with a first storage pool that includes a first plurality of storage resources on which a first set of replicas of a dataset is distributed; selecting, in response to the interruption, a second storage pool that includes a second plurality of storage resources; and generating, based on one or more replicas within the first set of replicas, a second set of replicas of the dataset distributed among the second plurality of storage resources in the second storage pool.

Provided is a memory system including a plurality of memory submodules and a controller. Each submodule comprises a plurality of memory channels, each channel having a parity bit and a redundant array of independent devices (RAID) parity channel. The controller is configured to receive a block of data for storage in the plurality of memory submodules and determine whether a level of data traffic demand for a first of the plurality of submodules is high or low. When the data traffic demand is low, (i) writing a portion of the block of data in the first of the plurality of submodules and (ii) concurrently updating the parity bit and the RAID parity channel associated with the block of data. When the data traffic demand is high, (i) only writing the portion of the block of data in the first of the plurality of submodules and (ii) deferring updating of the parity bits and the RAID parity channel associated with the block of data.

Managing input/output (‘I/O’) queues in a data storage system, including: receiving, by a host that is coupled to a plurality of storage devices via a storage network, a plurality of I/O operations to be serviced by a target storage device; determining, for each of a plurality of paths between the host and the target storage device, a data transfer maximum associated with the path; determining, for one or more of the plurality of paths, a cumulative amount of data to be transferred by I/O operations pending on the path; and selecting a target path for transmitting one or more of the plurality of I/O operations to the target storage device in dependence upon the cumulative amount of data to be transferred by I/O operations pending on the path and the data transfer maximum associated with the path.

Techniques for extending a storage system having a first pool involve adding, in response to a request, second storage devices, wherein the first pool is generated using first storage devices and based on a first standard. The first pool includes first stripes created using the first standard, and the number of the second storage devices equals a first stripe width associated with the first standard. Such techniques further involve creating a second pool using the second storage devices and based on a second standard, wherein a second stripe width associated with the second standard equals the first stripe width. Such techniques further involve creating second stripes in the second pool using the second storage devices and based on the second standard. Such techniques further involve storing data of at least one of the first stripes to a corresponding stripe of the second stripes according to a data shuffle rule.

In a complex system including; one or more storage systems including a cache and a storage controller; and one or more storage boxes including a storage medium, the storage box generates redundant data from write data received from a server, and writes the write data and the redundant data to the storage medium. The storage box transmits the write data to the storage system when it is difficult to generate the redundant data or it is difficult to write the write data and the redundant data to the storage medium. The storage system stores the received write data in the cache.

A data storage system includes a plurality of storage devices organized as a redundant array of inexpensive disks (RAID) storage array and a RAID controller. The RAID controller monitors the plurality of storage devices in the RAID storage array. The RAID controller also detects that a host read request of a host has a latency exceeding a latency threshold. Based on the monitoring, the RAID controller determines whether a proactive rebuild of a data requested by the host read request in absence of a data error would likely be beneficial to performance. Based on determining that a proactive rebuild of the data requested by the host read request would likely be beneficial to performance, the RAID controller initiates the proactive rebuild of the data and sends the requested data to the host.

A data storage system and a global deduplication method thereof are provided. The data storage system includes multiple storage devices and one dispatch device. The dispatch device divides an original data corresponding to a data writing request into at least one data chunk. The dispatch device performs a summary calculation on one data chunk, so as to generate a representative value. The dispatch device performs a first distribution calculation on the representative value, so as to determine a destination location corresponding to the representative value. The dispatch device transmits the data chunk and the representative value to at least one destination storage device among the storage devices through a communication network according to the destination location. The at least one destination storage device checks the representative value, so as to determine whether to store the data chunk in a storage space of the at least one destination storage device.

Physical storage devices (PSDs) of a protection group cluster (PGC) may be represented by a protection group matrix (PGM) having a plurality of rows and a plurality of columns, where each row corresponds to a PSD of the PGC, and each column corresponds to a partition of each PSD. The value specified in each cell at an intersection of a row and column specifies the protection group of the PGC to which the partition of the PSD represented by the column and row, respectively, is (or will be) assigned. In response to one or more of PSDs being added to a PGC, the PGM may be reconfigured, including adding new rows, and transposing portions of columns to the new rows, or transposing portions of rows to portions of columns of the new rows. Protection members of the PGC may be re-assigned based on the reconfiguration.

The present disclosure relates to establishing a tightly coupled integration between a decentralized blockchain network and a centralized storage array. In embodiments, a first set of storage operations on a snapshot of a storage array are performed. Further, data blocks generated from the snapshot are broadcast to at least one computing network for the at least one computing network's nodes to perform a second set of storage operations.

Aspects of the present disclosure relate to data cache management. In embodiments, a storage array's memory is provisioned with cache memory, wherein the cache memory includes one or more sets of distinctly sized cache slots. Additionally, a logical storage volume (LSV) is established with at least one logical block address (LBA) group. Further, at least one of the LSV's LBA groups is associated with two or more distinctly sized cache slots based on an input/output (IO) workload received by the storage array.