Emc IP Holding Company LLC

Jiang Tan

Yang Zhang

Hao Wang

Chaojun Zhao

Hongyuan Zeng

Junfeng Wu

Techniques for adjusting storage space involve: receiving a request for adjusting available storage space of a user in a filesystem from a first size to a second size; determining whether to allow to adjust the available storage space based on the request; and in response to allowing to adjust the available storage space, adjusting the available storage space to the second size. Accordingly, not only operations that an administrator needs to perform for adjusting the available storage space of a user is reduced, but also a quick and correct response for a request from a user of adjusting the available storage space is guaranteed.

Method, a device, and a computer program product for adjusting a storage space

Storage management techniques involve determining, from a set of users sharing a storage system, a plurality of target users with storage quotas to be updated; obtaining a total increase storage quota to be increased for the storage system; and determining allocation of the total increase storage quota among the plurality of target users according to at least one of a first strategy associated with quota proportions and a second strategy associated with a used storage capacity. The allocation of the increase storage quota is determined automatically according one or more predefined strategies, which can achieve storage quota allocation effectively and automatically, thereby increasing storage efficiency.

Method, device, and computer program for storage management

Techniques involve managing a storage system. Along these lines, for each of a plurality of snapshots, a plurality of blocks referenced by the snapshot is determined. An evaluation score indicating an impact that deletion of the snapshot has on space release and data retention is determined based on at least one of: a reference count for the plurality of blocks, a size of a storage resource associated with the snapshot, and the number of blocks of the plurality of blocks that are referenced only once. At least one snapshot to be deleted is selected from the plurality of snapshots based on respective evaluation scores of the plurality of snapshots.

Method, device, and computer readable storage medium for managing storage system

Techniques involve determining a first remaining lifetime of a flash device at a first time based on a warranty period, a factor of the number of writes per unit of time, and the number of executed writes for the flash device. The techniques further involve obtaining a second remaining lifetime at a second time prior to the first time, the second remaining lifetime being determined at the second time based on the warranty period, the factor of the number of writes per unit of time, and the number of executed writes. The techniques further involve determining a first lifetime decay rate based on the first and second remaining lifetimes. In addition, the techniques may determine a first predicted remaining lifetime based on the first lifetime decay rate. Accordingly, a remaining lifetime can be predicted based on the usage trend thereof.

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Chengdu, China

Jiang Tan