Managing snapshot storage pools
AssigneeInternational Business Machines Corporation
InventorsYaron Revah, Shemer Schwartz, Efri Zeidner, Ofir Zohar
Life of this patent
Estimating the term…
Abstract
Various embodiments of the invention relate to an apparatus and a method of managing a snapshot storage pool (SSP) associated with a storage unit of a distributed data storage system. According to some embodiments of the invention, the apparatus may include a logic module and a processor. The logic module may be adapted to provide a threshold corresponding to a ratio between a current amount of storage resources used for storing snapshots in the SSP and a total storage capacity defined for the SSP. The processor may be adapted to trigger an action that may be effective for managing the SSP in response to the amount of storage resources used for storing snapshots in the SSP crossing the threshold.
Claims21
A method for managing a plurality of storage pools of snapshots in a distributed data storage system, the method comprising the steps of:
- determining, by a processor, a ratio between a current amount of storage resources used in a first storage pool of snapshots and a total storage capacity for the first storage pool of snapshots, the ratio determined when one of a predetermined number of write operations has been performed on the first storage pool of snapshots and after a predetermined amount of time has passed;
- detecting a first trigger condition in the first storage pool of snapshots, the first trigger condition comprising determining that the ratio is greater than a first predetermined threshold;
- and
- transferring storage resources that are assigned to a second storage pool of snapshots to the first storage pool of snapshots in response to detecting the first trigger condition.
A computer-readable storage memory storing instructions that, when executed by a processor, cause the processor to perform a method for managing a plurality of storage pools of snapshots in a distributed data storage system comprising the steps of:
- determining a ratio between a current amount of storage resources used in a first storage pool of snapshots and a total storage capacity for the first storage pool of snapshots, the ratio determined when one of a predetermined number of write operations has been performed on the first storage pool of snapshots and after a predetermined amount of time has passed;
- detecting a first trigger condition in the first storage pool of snapshots, the first trigger condition comprising determining that the ratio is greater than a first predetermined threshold;
- and
- transferring storage resources that are assigned to a second storage pool of snapshots to the first storage pool of snapshots in response to detecting the first trigger condition.
A system for managing a plurality of storage pools of snapshots in a distributed data storage system, comprising:
- memory associated with the plurality of storage pools of snapshots;
- and
- a processor in communication with the memory, wherein the processor is configured to:
- determine a ratio between a current amount of storage resources used in a first storage pool of snapshots and a total storage capacity for the first storage pool of snapshots, the ratio determined when one of a predetermined number of write operations has been performed on the first storage pool of snapshots and after a predetermined amount of time has passed,
- detect a first trigger condition in the first storage pool of snapshots, the first trigger condition comprising determining that the ratio is greater than a first predetermined threshold, and
- transfer storage resources that are assigned to a second storage pool of snapshots to the first storage pool of snapshots in response to detecting the first trigger condition.
Dependencies are inferred from the claim text.