Emc IP Holding Company LLC

Sap Se

Southwest Petroleum University

Ke Xing Li

Qingxiao Zheng

Haitao Li

Yi Bin Wang

Yi Wang

Rui Liu

Jingrong Zhao

Lin Sun

Hong Li

Bo Ren

Pengfei Li

Long He

En Long Zhen

Xiao Qing He

Song Fu

Fa Yang Jin

Xun Lin

Gui Zhou Li

Wan Fen Pu

Ming Huang

Wen Ge Hu

Jian Jun Xia

Bei Ning Li

Hai Yang Zhao

Li Hui Wu

Dai Jun Du

Bao Lei Jiao

Geng Peng

Zhen Qian

Embodiments of the present disclosure provide a method, device and computer program product for managing backup data. The method comprising: obtaining historical information of a plurality of historical operations on target data in a backup storage device during a first time period, the historical information indicating at least types and time of occurrences of the plurality of historical operations; determining, based on the historical information, whether the target data is to be rewritten to the backup storage device within a second time period after the first time period; and in response to determining that the target data is to be written to the backup storage device within the second time period, adjusting an expiration time of the target data in the backup storage device. Based on such a manner, efficiency of the backup system can be increased.

Method for managing backup data, electronic device and computer program product

Embodiments of the present disclosure provide a method, a device and a computer program product for storage management. The method comprises: obtaining time information related to a removal time point for a backup storage system, the time information indicating that a chunk in the backup storage system whose expiration time does not exceed the removal time point is to be removed; determining, from a removal period list, a target removal period whose end time does not exceed the removal time point, each removal period in the removal period list being mapped to at least one chunk element, the at least one chunk element representing at least one chunk in the backup storage system whose expiration time is within the removal period to which the at least one chunk element is mapped; determining at least one target chunk element to which the target removal period is mapped; and removing, from the backup storage system, at least one target chunk corresponding to the at least one target chunk element. Therefore, with this solution, expired chunks can be efficiently removed.

Method, device, and computer program product for storage management

A plugging agent with temperature-resistant, salt-resistant and high-expansion for plugging large fractures and a preparation method thereof of the present disclosure are provided, the plugging agent system consists of the following components: main agent: 6%&#x2dc;10%, cross-linking agent: 0.6%&#x2dc;1%, initiator: 0.006%&#x2dc;0.01%, additive: 6%&#x2dc;14%, and the rest being water; the preparation method includes the following steps: adding montmorillonite to water to prepare a montmorillonite dispersion system; adding the main agent, the cross-linking agent and the initiator to the montmorillonite dispersion system to prepare a main agent solution; putting the main agent solution into an oven with a temperature range with 90&#x2dc;20&#xb0; C. for 9&#x2dc;48 h to obtain gelation, the adhesive strength of the agent system can reach grade H, with 50&#x2dc;80 expansion multiple, good strength after being expanded and good water plugging effect under the condition of a temperature of 140&#xb0; C. and 250,000 degree of mineralization.

Plugging agent with temperature-resistant, salt-resistant and high-expansion for plugging large fractures and preparation method thereof

Methods, systems, and computer program products for generating a search of attachments are described. A search request based on a business template is obtained, the business template comprising a node containing an identity of an entity to which the attachment is attached and an attachment sub-node. A search request based on an attachment template is obtained, the attachment template comprising a root node referring to the attachment sub-node of the business template and a node containing an identity of the attachment. A search is performed based on the business template and the attachment template.

Methods, systems, and apparatus for search of electronic information attachments

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Chengdu, China

Ke Xing Li