Emc IP Holding Company LLC

Dell Products Inc.

Vicent Wu

Bernie Hu

Jia Huang

Bob Biao Yan

Jessica Jing Ye

Ying Yu

Amber Jing Li

Olivia Juan Huang

Embodiments of the present disclosure relate to a method, device and computer program product for managing storage systems. A method comprises, in response to receiving a command to recover a storage system, reading first configuration information from a first disk of the storage system to be recovered, the first configuration information indicating a first disk array group to which the first disk belongs. The method further comprises recovering the first disk array group based at least on the first configuration information. The method further comprises, in response to the first disk array group being recovered, reading second configuration information from the first disk array group, the second configuration information indicating a storage resource pool to which the first disk array group belongs. Additionally, the method further comprises recovering the storage resource pool based at least on the second configuration information. Embodiments of the present disclosure can gradually recover various levels of storage objects in the storage system in the event of loss of configuration information in the system database.

Method, device and computer program product for managing a storage system

Embodiments of the present disclosure provide methods, apparatuses and computer program products for managing a storage system. The storage system comprises a plurality of cache devices and a bottom storage device, and the plurality of cache devices comprise a first cache device group and a second cache device group. The method according to an aspect of the present disclosure comprises: receiving an input/output (I/O) request for the storage device; in response to determining that the I/O request triggers caching of target data, storing the target data from the storage device into the first cache device group if the I/O request is a read request; and storing the target data into the second cache device group if the I/O request is a write request. Embodiments of the present disclosure introduce a new architecture for cache devices so that the processing delay is shortened, and/or, the storage capacity can be used more effectively.

Method and apparatus for managing storage system

Embodiments of the present disclosure provide methods, apparatuses and computer program products for managing a storage system. The storage system comprises a plurality of cache devices and a bottom storage device, and the plurality of cache devices comprise a first cache device group and a second cache device group. The method according to an aspect of the present disclosure comprises: receiving an input/output (I/O) request for the storage device; in response to determining that the I/O request triggers caching of target data, storing the target data from the storage device into the first cache device group if the I/O request is a read request; and storing the target data into the second cache device group if the I/O request is a write request.

Managing storage system

Growing community of inventors

Chengdu, China

Vicent Wu