Emc IP Holding Company LLC

Yujun Liang

Lihui Su

Ming Zhang

James Morton

Min Liu

Yubing Zhang

Yun Zhang

Mengze Liao

Weiyang Liu

Scott Randolph Quesnelle

Ren Wang

Yin Wei

A method for deploying product applications within virtual machines onto on-premises and public cloud infrastructures. Specifically, the disclosed method proposes a migration scheme of virtual machine images (configured at least with product applications and guest operating systems) from an on-premises infrastructure to a public cloud infrastructure. Further, the migration scheme considers two workflows—a normal workflow contingent on the public cloud infrastructure having up-to-date support for the guest operating systems; and an exception workflow contingent on the public cloud infrastructure lacking up-to-date support for the guest operating systems.

Method for deploying product applications within virtual machines onto on-premises and public cloud infrastructures

Described is a system for preventing unauthorized access to an upgrade implementation module while an authentication-authorization service is offline. Various embodiments of the upgrade implementation module record an upgrade token generated by a system manager. The upgrade implementation module sets an authentication-authorization service to an offline mode. The upgrade implementation module determines a match between a received upgrade token and the recorded upgrade token in order to prevent unauthorized access of the upgrade implementation module. In response to determining the match, the upgrade implementation module authorizes implementation of an upgrade package associated with the upgrade token while the authentication-authorization service is in the offline mode.

Granting access to upgrade resource with existing authorization infrastructure

An apparatus, method, and system for updating a file index in a search engine in a data backup system to reflect file changes introduced in a new backup is disclosed. The operations comprise: generating a first external file, the first external file comprising file hashes for files already indexed in a file index in a search engine of a data backup storage system that are not associated with a deleted status; generating a second external file, the second external file comprising file hashes for files in a new backup; determining one or more file changes introduced in the new backup based on a comparison between the first external file and the second external file; and updating the file index in the search engine to reflect the one or more file changes introduced in the new backup.

Efficient method to find changed data between indexed data and new backup

Methods for backup and recovery are disclosed. The method includes determining, based on attributes of at least one of one or more files included in data to be backed up, priorities of data blocks associated with the at least one file and storing the data to be backed up and indications of the determined priorities of the data blocks to a second storage device. The methods may determine data blocks that are more important for recovery while backing up data, so that backup data can be recovered faster in future.

Methods for backup and recovery

An application is provided as a compound virtual appliance having components to be hosted by virtual machines. Each component includes a set of virtual machine disks. Partial versions of the components are created by removing from each component each virtual machine disk determined to be a duplicate of a virtual machine disk of another component. A compact version of the compound virtual appliance is created by packing together the partial versions of the components and a single copy of each virtual machine disk having been determined to be a duplicate. The compact compound virtual appliance is deployed to a customer site. At the customer site, a complete version of the compound virtual appliance is reconstructed by adding back the single copy of each virtual machine disk having been determined to be a duplicate into each component having had the duplicate virtual machine disk removed.

Systems and methods to decrease the size of a compound virtual appliance file

File metadata of a virtual machine can be generated when performing a backup of a virtual machine. A backup copy of the virtual machine and the file metadata can be stored in a backup storage system. The file metadata can be retrieved from the storage system in a manner that is decoupled from the performance of the backup of the virtual machine. The file metadata can be used for searching for files within the backup copy of the virtual machine.

Intelligent method to generate and sync virtual machine file metadata for search

Embodiments of the present disclosure provide a method, a device, and a computer program product for updating software. The method comprises: determining a plurality of to-be-updated components from a component set comprised in the software; updating the plurality of components; periodically acquiring a component update progress corresponding to each component of the plurality of components, the component update progress indicating a completion percentage of updating of the corresponding component; and determining a software update progress of the software based on component update progresses of the plurality of components, the software update progress indicating a completion percentage of updating of the software. In this way, more accurate software update progress information can be provided.

Growing community of inventors

Shanghai, China

Yujun Liang