Multiple data paths may be available to a data management system for transferring data between a primary storage device and a secondary storage device. The data management system may be able to gain operational advantages by performing load balancing across the multiple data paths. The system may use application layer characteristics of the data for transferring from a primary storage to a backup storage during data backup operation, and correspondingly from a secondary or backup storage system to a primary storage system during restoration.

A system includes reception of a first query at a first host, determination, at the first host, that the first query is associated with a first table, the first table including geographically-restricted data and a partitioning column storing identifiers of geographic restrictions, determination, at the first host and based on the partitioning column of the first table and on the first query, a first partition of the first table and a storage location of the first partition, and execution of the first query at the first host in conjunction with the storage location of the first partition.

One example method includes chunking a respective disk of each of a plurality of virtual machines (VM) to create a respective plurality of chunks associated with each of the VMs, creating, based on the chunking process, a cluster comprising one or more of the VMs, creating a VM template whose data and disk structure match respective data and disk structures of each of the VMs in the cluster, and in response to a file operation involving a first one of the VM disks, defragmenting the first VM disk so that a disk structure of the first VM disk is the same as a disk structure of the VM template.

Methods and systems of applying retroactive adjustments to financial data. An example method includes: receiving one or more adjustment records associated with a financial account; saving a snapshot of the financial account, the snapshot comprising a plurality of transaction records reflecting previously processed transactions associated with the financial account; merging the adjustment records and the transaction records to produce a plurality of adjusted transaction records; processing adjusted transaction records to produce an updated state of the financial account; comparing the saved snapshot to the updated state of the financial account to produce one or more adjustment events; and processing the adjustment events using one or more event processing rules.

A storage manager for an information management system determines whether one or more predetermined conditions have been met for transferring metadata of previously performed backup jobs stored in a first management database. A backup job may correspond to a backup operation of a primary storage device of a first client computing device. In response to a determination that one or more of the predetermined conditions have been met, the storage manager may transfer metadata for a second plurality of backup jobs to a second management database of a recovery manager. The recovery manager may receive a request to restore data to the primary storage device of the first client computing device based on the metadata of the second plurality of backup jobs. A media agent managed by the recovery manager may then restore the requested data to the primary storage device of the first client computing device.

The present disclosure provides a cleaning and recovery method and device for a heterogeneous executor in a mimic switch, and a mimic switch, the method includes: a mimic scheduler determining a designated heterogeneous executor that needs to be cleaned, marking the designated heterogeneous executor that needs to be cleaned as in a cleaning state, and sending a cleaning instruction to the designated heterogeneous executor; the designated heterogeneous executor sending a normal protocol negotiation message to the mimic scheduler to try to interact with the mimic scheduler; the mimic scheduler receiving the protocol negotiation message and detecting whether the designated heterogeneous executor is in the cleaning state; if in the cleaning state, the mimic scheduler; constructing a training message, and sending the training message to the designated heterogeneous executor for protocol training; repeating sending and processing the protocol negotiation message until the designated heterogeneous executor is in a normal state.

A method executed by an arithmetic circuit of one or a plurality of computers includes periodically collecting log information from an electronic device, inputting the log information collected before a current clock time from the electronic device to a prediction model, causing the prediction model to predict an abnormal or normal operating state of a recording medium after the current clock time, and transmitting replacement notification information that is based on a prediction result to the electronic device. The prediction model is generated by performing machine learning using, as training data, training log information collected within a predetermined period up to a reference clock time from a plurality of training electronic devices each including a training recording medium, and state information indicating an operating state of the training recording medium determined after the reference clock time.

Described screenshot verification systems and methods for automatically verifying the integrity of a backup image or other process-of-interest using a screenshot verification system, as well as disaster recovery systems including said systems and performing said methods. In accordance with various aspects of the present disclosure, a virtual machine is booted and screenshots of the boot process are taken, which are used by a trained model, such as a convolutional neural network, to determine a boot state consistency. The systems and methods described deliver over 99% accuracy and do not involve regular expression analysis typical of conventional methods.

Systems and methods for determining an access pattern in a computing system. Accesses to a file may contain random accesses and sequential accesses. The file may be divided into multiple regions and the accesses to each region are tracked. The access pattern for each region can then be determined independently of the access patterns of other regions of the file.

In an embodiment, two or more storage systems are requested to prepare respective local checkpoints for a dataset, wherein each of the two or more storage systems stores portion of the dataset. The two or more storage systems are determined to have established the checkpoint. In response to determining that the local checkpoints have been established, a coordinated checkpoint is completed.