Example distributed storage systems, replication state engines, and methods manage replication state for guaranteed replication between data stores. An object data store may store data objects that have been determined for deletion and rendered inaccessible to a client application. A replication state may be queried for deleted data objects and, if the replication state indicates that replication to another object data store is incomplete, physical deletion may be delayed until the replication state indicates that replication is complete and the data object may be physically deleted.

A system for managing a client request is described herein, which may have at least one processor and a non-transitory computer-readable medium containing a set of instructions executable by the at least one processor. Execution of these instructions may cause the processor to perform steps of: validating a client request received from a remote client device, the client request including request data; transmitting, based on the validating, a response to the remote client device; based on the request data, determining a queue for the client request; asynchronously enqueuing the client request in the queue, the queue being configured to analyze the client request according to a model; analyzing the client request; and based on analyzing the client request, performing a responsive action.

A method includes receiving signaling indicative of performance of a reset operation involving a first physical function associated with a controller of a memory device and initiating a first timer that corresponds to an amount of time available for the first physical function associated with the controller of the memory device to complete execution of pending commands. The method further includes initiating a second timer that corresponds to an amount of time available for a second physical function associated with the controller of the memory device to complete execution of pending commands and initiating a third timer that corresponds to an amount of time available for the second physical function associated with the controller of the memory device to join a recovery operation that is instigated as a result of performance of the reset operation.

A server computer system configured to proactively predict a session failure of a virtual service is provided. The server computer system includes a memory and at least one processor coupled to the memory. The at least one processor is configured to receive one or more feature values associated with the virtual service. The processor can then evaluate a likelihood of session failure of the virtual service, such as a session launch failure, unresponsive state, or persistent session failure, in a future time interval based on the received feature values. The processor can then determine that the likelihood of session failure satisfies a classification test indicating the session failure is likely. Responsive to the determination, the processor can then execute a corrective operation, such as to end a user session, disable the virtual service, restart the virtual service, or render a user notification.

A plurality of computing devices are communicatively coupled to each other via a network, and each of the plurality of computing devices comprises one or more of a plurality of storage devices. A plurality of failure resilient address spaces are distributed across the plurality of storage devices such that each of the plurality of failure resilient address spaces spans a plurality of the storage devices. Each one of the plurality of failure resilient address spaces is organized into a plurality of stripes. Each one or more stripes of the plurality of stripes is part of a respective one of a plurality of forward error correction (FEC) protection domains. Each of the plurality of stripes may comprise a plurality of storage blocks. Each block of a particular one of the plurality of stripes may reside on a different one of the plurality of storage devices.

Embodiments of the present disclosure relate to a memory system and an operating method thereof. The memory system may include a first processor and a second processor. The first processor is configured to manage or process a main read count table including a plurality of first read count table entries each corresponding to one of a plurality of super memory blocks. The second processor is configured to manage or process, when an error occurs during an operation of reading data stored in one of the plurality of super memory blocks, a partial read count table including a read count table entry including information on a count of the read operation executed during a recovery operation for the error, and transmit an update message to the first processor for updating the main read count table based on the partial read count table.

The invention relates to systems for storing data on disk drives and makes it possible to accelerate the redistribution of data. At least one physical disk drive is added to a disk array. The stripes of the data disk array are divided into groups, wherein the number of stripes from the original configuration of the array is selected such that, when data are migrated, they occupy an integer number of stripes. The data from each group of stripes are migrated successively to a pre-reserved data writing area, and then the data from this group of stripes is written to stripes of a new configuration of the disk array. When the size of a free area becomes greater than the size of a group of stripes for migration, the data from each group of stripes of the original disk array are migrated and written directly to the stripes of the new configuration.

The present disclosure relates to a system and method for creating a backup and restoring the exact clean system state prior to malware detection. The system includes a security system, in communication with one or more applications of a computing system, and a backup unit. The security system detects malware during execution of the applications or events based on a memory dump analysis. The backup unit creates a backup copy of the system state corresponding to each event, labels each copy and creates an index. When the security system detects presence of the malware at a particular event, the backup system parses the index, and with use of the labels, retrieves the exact backup copy that belongs to the event preceding the other event that caused the malware attack.

Techniques are disclosed relating to automated operations management. In various embodiments, a computer system accesses operational information that defines commands for an operational scenario and accesses blueprints that describe operational entities in a target computer environment related to the operational scenario. The computer system implements the operational scenario for the target computer environment. The implementing may include executing a hierarchy of controller modules that include an orchestrator controller module at top level of the hierarchy that is executable to carry out the commands by issuing instructions to controller modules at a next level. The controller modules may be executable to manage the operational entities according to the blueprints to complete the operational scenario. In various embodiments, the computer system includes additional features such as an application programming interface (API), a remote routing engine, a workflow engine, a reasoning engine, a security engine, and a testing engine.

An apparatus comprising a first processor comprising first circuitry to track correctable errors detected by a first communication device of a second processor; and second circuitry to communicate with the second processor to initiate, based on the tracked correctable errors, a link recovery procedure for the first communication device.