An information processing system includes a first storage system for supplying a primary site, and a second storage system for supplying a secondary site. The first storage system is allowed to execute replication by transferring a processing history of a data volume of the first storage system to the second storage system, and to transfer multiple processing histories collectively. The first storage system integrates histories of multiple write accesses included in the multiple processing histories to be collectively transferred, which are duplicatedly addressed on the volume for transfer.

A distributed processing method based on a consistency protocol is provided. The method includes: transmitting a decree prepare request including a first decree number, the decree prepare request requesting other nodes to promise to no longer accept a fast write operation initiated by a leader node whose leader number is less than the first decree number, the first decree number representing a leader number of a current node, and the leader number representing a number of a decree at which the current node that becomes a leader node is located; and in response to receiving decree promises from at least a preset quantity of nodes among the other nodes, enabling the fast write operation from a subsequent decree number of a second decree number determined based on the decree promises, each of the decree promises including the first decree number.

During operation, a key-value storage system can receive a request to write data to a data region in a first non-volatile memory. The system can determine a key associated with the data and the key can correspond to an entry in a data structure maintained by a volatile memory the storage system. In response to determining the key, the system can write the data to the data region in the first non-volatile memory. The system can update in the volatile memory the data structure entry corresponding to the key with a physical location in the data region of the first non-volatile memory to which the data is written. The system can write the data structure update to a second non-volatile memory. The system can then store a snapshot of the data structure in a metadata region associated with the first non-volatile memory, thereby allowing persistent storage of the data structure.

An example method of managing storage for a containerized application executing in a virtualized computing system having a cluster of hosts and a virtualization layer executing thereon, is described. The method includes receiving, at a supervisor container orchestrator, a request for a first persistent volume lifecycle operation from a guest container orchestrator, the supervisor container orchestrator being part of an orchestration control plane integrated with the virtualization layer and configured to manage a guest cluster and virtual machines (VMs), supported by the virtualization layer, in which the guest cluster executes, the guest container orchestrator being part of the guest cluster; and sending, in response to the first persistent volume lifecycle operation, a request for a second persistent volume lifecycle operation from the supervisor container orchestrator to a storage provider of the virtualized computing system to cause the storage provider to perform an operation on a storage volume.

Embodiments of this application provide a hybrid-cloud data storage method and apparatus, a related device, and a cloud system. The data storage method includes: obtaining, by a gateway of a private cloud, to-be-stored data; determining partial data to be encrypted in the to-be-stored data, to obtain first target data; obtaining a first ciphertext obtained after the first target data is encrypted, the first target data being encrypted according to a first key provided by an encryption chip connected to the gateway; generating second target data including the first ciphertext according to the first ciphertext; generating a data slice corresponding to the second target data according to the second target data; and transmitting the data slice corresponding to the second target data to a public cloud for storage.

An apparatus comprises a processing device configured to receive a request to restore one or more applications, the request specifying one of a set of remote copies of storage volumes that store data of the applications. The processing device is also configured to analyze the applications to identify (i) the storage volumes storing data for the applications and (ii) groups comprising the identified storage volumes. The processing device is also configured, responsive to determining that the identified groups are part of a group replication session, to select one of a set of different types of restore processes for performing the restore of the applications to the specified remote copy based at least in part on whether the identified groups comprise additional storage volumes other than the identified storage volumes and to perform the restore of the applications to the specified remote copy utilizing the selected restore process.

Techniques for using erasure coding in a single region to reduce the likelihood of losing objects in a cloud object storage platform are provided. In one set of embodiments, a computer system can upload a plurality of data objects to a region of a cloud object storage platform, where the plurality of data objects including modifications to a data set. The computer system can further compute a parity object based on the plurality of data objects, where the parity object encodes parity information for the plurality of data objects. The computer system can then upload the parity object to the same region where the plurality of data objects was uploaded.

Described are methods, systems and computer readable media for dynamic updating of query result displays.

The present disclosure provides methods, systems, and non-transitory computer readable media for performing data transfers with improved error encoding. The methods include receiving a request for data transfer from a source medium in the data storage system to a destination medium in the data storage system, wherein the data storage system comprises a computer cluster and a storage cluster; determining whether the source medium and the destination medium are within the storage cluster; based on the determination of whether the source medium and the destination medium are within the storage cluster, transferring the data from the source medium to the destination medium, wherein: the data is transferred without performing error correcting code check when the data is transferred within the storage cluster, and the data is transferred with an error correcting code check when the data is transferred between the computer cluster and the storage cluster.

Systems and methods are provided to manage a replication service of a block storage volume to increase dependability and/or decrease data loss. Each snapshot of a block storage volume can include a point-in-time representation of the volume. Each snapshot may include multiple objects that correspond to one or more blocks of the volume. One or more objects of a snapshot may reference a parent snapshot instead of a block of the volume. Each object of a snapshot may be replicated a number of times based on the number of references by other snapshots. The number of replicas may be based on the number of snapshots referencing the object or the number of unique clients referencing the object. The replication service can manage the replicas of the object and increase or decrease the number of replicas as needed.