5 results about "Network File System" patented technology

An NFS export is created on a node of a data protection appliance. The export includes a backup to be accessed by an access object service hosted by the node. The node is in a cluster of nodes including other AOB services and NFSv3 servers accessible via external IP addresses. Each AOB service has access to other portions of the filesystem assigned to other AOB services. The export is mounted at an NFSv3 client which conducts data protection IO on the export using an external IP address to the node. A mapping of the export is maintained. Upon a node failure, resource utilization of other nodes is probed to select a failover node. The mapping is consulted to identify the IP address associated with the failed node. The IP address is migrated to the failover node.

The application discloses a data access method applied to an intermediate device in a network file system (NFS) architecture. In the method, the intermediate device is arranged between a client device and a remote server, and the intermediate device is responsible for caching part of data on the remote server. In this way, when the intermediate device obtains a data access request from each client device, the intermediate device can quickly return corresponding data to the client device based on the cached data, thereby improving data access efficiency. Moreover, the data is uniformly cached based on one intermediate device, without introducing a complex delegation authorization mechanism, thereby reducing data processing overhead and network burden.

Name caching can be used external to a distributed file system (DFS), such as a network file system (NFS), to reduce the complexity of facilitating a file operation at the DFS. A system that can use the name caching and request the file operation of the DFS can comprise a processor and a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations. The operations can comprise, in response to a lookup operation or a file operation performed by a DFS, storing, using the processor, a name cache entry for each directory element accessed during the lookup operation or the file operation. The operations further can comprise sending, to the DFS, a single request that comprises a compound command comprising requests for a set of lookup operations and for a file operation.

This application relates to a virtual machine recovery method, apparatus, computer device, readable storage medium, and program product, belonging to the field of data protection and recovery technology, and can improve the versatility of instant recovery. The method includes: creating a state machine and entering the system mounting phase of the state machine; in the system mounting phase, mounting a logical file system created based on snapshot data of the failed virtual machine to a local directory on a backup server; in the system sharing phase, sharing the local directory of the backup server with the platform server of the virtualization platform based on a common network file system protocol, so that the platform server mounts the local directory of the backup server; in the virtual machine startup phase, creating a normal virtual machine in the local directory of the backup server to trigger the platform server to run the normal virtual machine based on the snapshot data in the local directory of the backup server; wherein, when a rollback trigger event is detected, the state machine is used to execute the corresponding rollback operation according to the phase in which the state machine is located.

The application discloses a configuration information updating method and device, a storage medium and an electronic device, relates to the technical field of cloud services, and is applied to a network file system. The network file system runs on a cloud storage cluster, and the network file system comprises a plurality of gateway nodes. The method comprises the following steps: a first storage unit and a second storage unit are arranged in a configuration center of the cloud storage cluster, wherein the first storage unit is used for storing configuration information of the network file system, and the second storage unit is used for storing operation instructions of the gateway nodes; the second storage unit is updated after the first storage unit is updated; and in the case that the second storage unit is determined to be updated, the configuration information of the plurality of gateway nodes is updated to the configuration information in the first storage unit. The technical problem that node configuration information of a distributed network file system is difficult to keep strong consistency in real time and reliably is solved, and the technical effect that node configuration information of the distributed network file system is kept consistent in real time and reliably is achieved.