Methods and apparatus for point-in-time volumes
AssigneeDataCore Software Corporation
InventorDavid A. Linde
Life of this patent
Estimating the term…
Abstract
Methods and apparatus for point-in-time volumes are provided. A relationship is enabled between a source volume and point-in-time volume. Copying a data chunk to the point-in-time volume before a write operation modifies the data chunk on the source volume dynamically creates the point-in-time volume. The point-in-time volume can be accessed in read/write mode as a general purpose data storage volume. Other embodiments comprising additional features, such as a forced migration process, are also provided.
Claims7
1-20. (canceled)
A method for creating point-in-time volumes, the method comprising:
- creating a first point-in-time volume from a first source volume, the first point-in-time volume being configured for independent use as a second source volume without requiring reference to the first source volume;
- and
- creating a second point-in-time volume based upon the first point-in-time volume.
A non-transitory computer readable medium storing program code for creating point-in-time volumes, the program code being executable to perform operations comprising:
- creating a first point-in-time volume from a first source volume, the first point-in-time volume being configured for independent use as a second source volume without requiring reference to the first source volume;
- and
- creating a second point-in-time volume based upon the first point-in-time volume.
An apparatus for creating point-in-time volumes, the apparatus comprising:
- a processor, and
- a memory, the memory storing program code executable by the processor to perform operations comprising:
- creating a first point-in-time volume from a first source volume, the first point-in-time volume being configured for independent use as a second source volume without requiring reference to the first source volume;
- and
- creating a second point-in-time volume based upon the first point-in-time volume.
Dependencies are inferred from the claim text.