Emc IP Holding Company LLC

Dell Products Inc.

Xiaolei Hu

Mengze Liao

Xiaoliang Zhu

Jing Yu

Ming Zhang

Arun Murti

Navneet Upadhyay

Zhenzhen Lin

Elango Chockalingam

Lihui Su

Scott Randolph Quesnelle

Rejith Mohan M

Shivaraj Abbigeri

Jinru Yan

Roger Hongyi Che

Shaofeng Chang

A method for managing data protection operations includes obtaining, by a data protection system, a policy request for configuring a data protection policy on the database system, wherein the database system comprises at least one active computing node, in response to obtaining the policy request: making a first determination that a first computing node of the database system has been discovered via deep discovery, updating a selection of computing nodes with the first computing node, making a second determination that a second computing node of the database system has not been discovered via the deep discovery, not including the second computing node in the selection, and performing a protection configuration on the selection of computing nodes to install the data protection policy to each computing node in the selection of computing nodes, and wherein the data protection policy comprises storage location information used for backing up a database.

Self-service data protection operation of active-passive and active-active database clusters

A method, electronic device, and computer-readable medium for storage management is disclosed. The method for storage management includes acquiring a data change rate of a data source, the data change rate indicating an occurrence rate of data to be backed up in the data source. The method also includes acquiring a recovery capability of a backup system to recover backed-up data and determining, based on the data change rate and the recovery capability, a backup strategy for backing up the data to be backed up.

Method, electronic device and computer program product for storage management

A efficient method for long-term retention backup policy within recovery point objectives (RPO). Specifically, the disclosed method proposes a dynamic promotion scheme through which short-term retention backup copies, in compliance with specified long-term retention RPOs, may be promoted to render long-term retention backup copies. Further, the disclosed method not only looks to past and/or presently dated short-term retention backup copies, but also looks to prospective (or future) dated short-term retention backup copies, which are expected or predicted to be produced, for promotion. Moreover, in circumstances where there are no appropriate past, present, or future dated short-term retention backup copies to promote, the disclosed method triggers new backup operations to acquire the long-term retention backup copies necessary to maintain the specified long-retention RPOs.

Efficient method for optimizing long-term retention backup policy within recovery point objectives (RPO)

A retention-based consistent hash ring process defines each file name in the system to include its expiration date (or time) as a prefix or suffix that is stored and indexed as metadata. The process uses a virtual node to represent adjacent expiration days to create virtual nodes based on individual days of the week. Each physical node contains the same number of labeled virtual nodes, and the consistent hash ring process is used to move files with the same expiration day to different physical nodes by looking for next labeled virtual nodes on the hash ring. This provides a way to locate the virtual node storage location by specifying a file's expiration date as part of the key used in the hash ring process, and distributes files that may otherwise be assigned to the same physical node through a backup policy.

Retention time based consistent hash ring

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Shanghai, China

Xiaolei Hu