A memory system includes multiple dice having multiple planes. A processing device is coupled to the dice and performs controller operations including receiving a status indicator signal comprising a pulse that is asserted by one or more planes of the multiple dice. In response to receiving the pulse, the processing device performs at least one of: a first status check of dice operations being performed by the multiple dice at an expiration of a polling delay period; or a second status check of the dice operations in response to detecting the pulse being deasserted. The processing device terminates performances of status checks while the status indicator signal remains deasserted.

A processing unit can include a performance monitor for monitoring the performance of the processing unit and associated sub-units. The performance monitor includes a logic analyzer, and implements a state machine via state machine data entries stored in a memory associated with the performance monitor. A state machine data entry includes output signals associated with state transitions. The output signals include a next state and a trigger to the logic analyzer. The performance monitor implements logic circuits that determine, based on input signals and the state machine data entries, the next state to transition and associated output signals. If a state transition includes a trigger to the logic analyzer, the trigger is transmitted to the logic analyzer. In response to the trigger, the logic analyzer assembles and samples input signals and stores the sampled input signals into the memory associated with the performance monitor, overwriting the state machine data entries.

A data processing method includes receiving a message related to performance of a storage device, the message including an indicator value regarding the performance in a first time period, and a timestamp associated with the first time period. A status record of the storage device, including the number of received indicator values in a second time period including the first time period, is determined based on the timestamp, wherein the number of the received indicator values is less than a threshold number and can be updated based on the indicator value. The performance in the second time period can be determined based on the indicator value and the received indicator values in response to determining that the updated number of the received indicator values reaches the threshold number. Thus, the performance of the storage device can be quickly and accurately determined, and the consumption of computing resources is reduced.

Aspects of the present disclosure relate to reducing the latency of data deduplication. In embodiments, an input/output (IO) workload received by a storage array is monitored. Further, at least one IO write operation in the IO workload is identified. A space-efficient probabilistic data structure is used to determine if a director board is associated with the IO write. Additionally, the IO write operation is processed based on the determination.

Methods, apparatus, and processor-readable storage media for automatically processing storage system data and generating visualizations representing differential data comparisons are provided herein. An example computer-implemented method includes obtaining current data from a first storage system and historical data from the first storage system and/or one or more additional storage systems; determining, for the first storage system, at least one current state value for at least one storage system parameter by processing the current data using a first hashing algorithm; determining, for the first storage system with respect to the first storage system and/or the additional storage systems, at least one differential state value for the at least one storage system parameter by processing the current data and the historical data using a second hashing algorithm; and generating data visualizations based on the current state value(s) and/or the differential state value(s).

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.

A method, computer program product, and computing system for executing a plurality of IO traces on a storage system. At least one vertical flow and at least one horizontal flow associated with the at least one vertical flow may be defined for the plurality of IO traces. A hierarchical representation of the plurality of IO traces may be generated with the at least one vertical flow and the at least one horizontal flow associated with the at least one vertical flow defined for the plurality of IO traces.

Provided are a cluster arbitration method and system based on heterogeneous storage, and a device and a storage medium. The method comprises: configuring heartbeat between every two adjacent nodes in a cluster (S1); in response to the occurrence of disconnection of the heartbeat between nodes, dividing the nodes in the cluster into a plurality of sub-clusters on the basis of the disconnected heartbeat, and determining whether a sub-cluster with the largest number of nodes is unique (S2); in response to the sub-cluster with the largest number of nodes not being unique, selecting a node from each sub-cluster with the largest number of nodes and also sending a reservation request to a third-party storage logical volume (S3); in response to there being a successfully reserved node, determining whether arbitration data in the third-party storage logical volume is valid (S4); and in response to the arbitration data in the third-party storage logical volume being invalid, writing arbitration information of the successfully reserved node into the third-party storage logical volume, such that the sub-cluster, where the node is located, obtains a control right of the cluster (S5). By means of an existing configuration, storage cluster arbitration is realized without occupying additional network bandwidths.

It is possible to reduce analysis cost of a management system.

The management system includes a CPU and manages one or more storage devices that provide, to a higher-level device, one or more volumes for inputting and outputting data. The CPU is configured to collect performance information of the volume from the storage device at a predetermined first time interval and detect a QoS violation of the performance information of the volume at a second time interval longer than the first time interval.

An instruction and data recording apparatus embedded in a host controller includes one or more channels, each coupled to memory devices, and a storage controller coupled to the channels having a storage control module and an internal memory. The storage control module comprises a command/address transmission channel, a data write channel and a data read channel, and a channel information monitoring module configured to capture instruction flow transmitted on the command/address transmission channel, and data flow transmitted on the data write and data read channels, and to record instruction and data items to the internal memory according to the instruction and data flows. The channel information monitoring module is configured to capture the instruction and data flows in a form of digital signals instead of analog signals at the physical layers. Any occurrence of a valid instruction flow or data flow event is treated as a single item.