A first backend housekeeping operation of a backend storage system is detected by a storage virtualization system. The first backend housekeeping operation is related to a first backend storage portion of the backend storage system. The storage virtualization system transfers data to the backend storage system for storage and retrieval. The storage virtualization system issues commands to the backend storage system. A first virtualized operation related to a first virtualized storage portion of the storage virtualization system is identified. A storage overhead condition is determined based on the first backend storage portion and based on the first virtualized operation. A storage corrective action is performed based on the storage overhead condition. The storage corrective action prevents the potential performance of one or more additional backend housekeeping operations.

Data recovery in a virtual storage system, including: detecting, within storage provided by a first tier of storage of the virtual storage system, data loss within a dataset, wherein recovery data for the dataset is stored in a second tier of storage; determining a recovery point for the dataset up to which a consistent version of the dataset is recoverable from the recovery data stored in the second tier of storage; and restoring, within the storage provided by the first tier of storage of the virtual storage system, the consistent version of the dataset.

Concepts and technologies directed to dedicated optical distribution of computing resources in virtualized environments are disclosed herein. In various aspects, a system can include a processor and memory storing instructions that, upon execution, cause performance of operations. The operations can include receiving a virtual machine creation request that includes a virtual processing requirement and a virtual memory requirement for a virtual machine. The operations can include accessing a physical host infrastructure map that identifies remainder resources from physical host servers within a datacenter. The operations can include creating a simulation test routine and assembling a candidate resource set from the remainder resources. The operations can include establishing a dedicated processing path and a dedicated memory path for the candidate resource set. The operations can include initiating the simulation test routine on the candidate resource set via the dedicated processing path and the dedicated memory path.

According to one embodiment, a memory system includes a nonvolatile semiconductor memory device, controller, memory, wireless communication function section, and extension register. The controller controls the nonvolatile semiconductor memory device. The memory is serving as a work area of the controller. The wireless communication module has a wireless communication function. The extension register is provided in the memory. The controller processes a first command to read data from the extension register, and a second command to write data to the extension register. The extension register records, an information specifying the type of the wireless communication function in a specific page, and an address information indicating a region on the extension register to which the wireless communication function is assigned.

A virtual disk migration method, apparatus and device, and a readable storage medium. Said method comprises: when a data change occurs in a cluster, updating the label of the cluster in a binary table to a first target value (S101); copying data in the cluster to a second data center, and updating the first target value to a second target value (S102); and upon reception of an instruction for migrating a virtual machine to the second data center (S103), controlling the virtual machine to stop operating, querying the first target value in the binary table, and migrating data in the cluster corresponding to the queried first target value to the second data center (S104). A part of data is copied to a second data center in advance on the basis of a binary table, and when a virtual machine is migrated, only the other part of data needs to be migrated, thereby reducing the data migration amount and migration time, and improving the migration efficiency of a virtual disk and a virtual machine.

A system includes a virtual computational storage emulation module configured to provide a virtual computational storage device. The system further includes a storage element, where the virtual computational storage emulation module is configured to store data associated with the virtual computational storage device at the storage element. The system further includes a compute element. The virtual computational storage emulation module is configured to send a compute request associated with the virtual computational storage device to the compute element.

An apparatus in an illustrative embodiment comprises at least one processing device comprising a processor and a memory, with the processor coupled to the memory. The at least one processing device is configured to receive in a storage system, from a host device, information that identifies (i) a particular virtual machine implemented by the host device and (ii) a key specific to the virtual machine, to utilize at least a portion of the received information to obtain in the storage system the key specific to the virtual machine from a key management server external to the storage system, to store the obtained key in the storage system in association with one or more parts of the received information, and to utilize the obtained key to process input-output operations that are received in the storage system from the host device and that are identified as being associated with the virtual machine.

A method for managing data storage using a distributed file system. A file system volume associated with a write request received at a data management subsystem is identified. A logical block device associated with the file system volume is identified. A plurality of data blocks is formed based on the write request. The plurality of data blocks is distributed across a plurality of node block stores in a distributed block layer of a storage management subsystem of the distributed file system. Each of the plurality of node block stores corresponds to a different node of a plurality of nodes in the distributed storage system. The storage management subsystem operates separately from but in communication with the data management subsystem.

Cluster state information is generated in response to a request to establish a connection with a cloud service system. The cluster state information includes a first instance of a security token and host information. The cluster state information is provided to a web browser associated with a user. The web browser associated with the user is redirected to a cloud identity provider. The cloud identity provider is configured to provide to the cloud service system via the web browser associated with the user, the cluster state information that includes the first instance of the security token and the host information. A certificate is requested from the cloud service system. The cluster state information that includes a second instance of the security token is provided to the cloud service system. The cloud service system is configured to establish the connection based on comparison between the first instance of the security token and the second instance of the security token. The established connection enables the user to manage a secondary storage system via the cloud service system.

A peripheral device includes one or more processors and a memory storing program instructions that when executed implement virtualization offloading components of a virtualized computing service, including a storage manager. The offloading components establish network connectivity with a control plane of the service. Based on detecting that a hardware server, in a separate enclosure, has been linked to the peripheral device, the hardware server is presented as a virtualization host of the service. The offloading components initiate compute instance configuration operations at the server in response to commands issued to the control plane, including at least one configuration operation initiated by the storage manager to enable access to a logical storage device from a compute instance.