International Business Machines Corporation

Lourie Goodall

Joseph M Swingler

Erika Dawson

Emmanuel Barajas Gonzalez

Edward Lin

Edward Hsiu-Wei Lin

Provided are a computer program product, system and method for restoring volumes in a data storage system. A virtual restoration of a volume of data stored in storage is performed using a target volume. In one embodiment, the virtual restoration includes configuring metadata associated with the target volume, to map the target volume to the recover volume as a virtual restoration of the recover volume. In response to a request by a host for data stored on the recover volume, physical restoration of data of the recover volume is performed using the target volume. In one embodiment, the physical restoration includes transferring data to the target volume from the recover volume to which the target volume is mapped by the virtual restoration. In addition, transferred data is relabeled as target volume data instead of recover volume data.

Data storage volume recovery management

A computer-implemented method according to one approach includes receiving requests to perform data operations on a first storage container, where the data operations include a read operation and a write operation. It is determined whether first data stored on the first storage container is set to a read-only status. In response to determining that the first data is set to the read-only status, the read operation is allowed to be performed on the first container for reading the first data, and the write operation is performed on a second storage container. Moreover, in response to determining that the first data is set to the read-only status, it is determined whether the read-only status has been withdrawn. In response to determining that the read-only status has been withdrawn, further write operations are allowed to be performed on the first storage container.

Utilizing statuses to preserve a state of data during procedures such as testing without causing functional interruptions

Provided are a computer program product, system and method for retaining versions of an object. Changes are appended to a current version object resulting in a new current version object and a most recent previous version object comprising the current version object before the changes were appended. Version metadata, for each previous version object, includes the most recent previous version object, indicating an offset in the new current version object at which the previous version object can be recovered. The most recent previous version object is deleted and the version metadata, for the most recent previous version object after the most recent previous version object is deleted, is retained to allow recovery of a previous version object from the new current version object using the offset in the version metadata.

Managing versions of objects resulting from appending data for space efficiency

A computer-implemented method, according to one embodiment, is for managing data received at a storage device. The computer-implemented method includes: receiving data management policies, and receiving two or more connection names from a host. Each of the connection names is correlated with one or more of the data management policies. Moreover, a connection path which extends between the storage device and the host is created. The connection path also has a connection name which corresponds thereto. Data is received along the connection path, and the connection name which corresponds to the connection path is matched to one of the connection names received from the host. Furthermore, the received data is processed according to the one or more data management policies that are correlated with the matching one of the connection names received from the host.

Associating data management policies to portions of data using connection information

A method for resynchronizing data repositories in a high availability storage environment includes maintaining, in a first gateway server, a first journal that records operations that are performed for a first set of objects. The method further maintains, in a second gateway server, a second journal that records operations that are performed for a second set of objects. The method communicates, from the first gateway server to the second gateway server, any operations that are performed by the first gateway server for objects in the second set, so that these operations may be recorded in the second journal. The method further communicates, from the second gateway server to the first gateway server, any operations that are performed by the second gateway server for objects in the first set, so that these operations may be recorded in the first journal. A corresponding system and computer program product are also disclosed.

Growing community of inventors

Tucson, AZ, United States of America

Lourie Goodall