Storage system and method for snapshot space management
US8688935B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2011 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Sep 3, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1448
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In accordance with certain aspects of the presently disclosed subject matter, there is provided a storage system and a method of storing data thereof. The method comprises: storing a plurality of snapshots of a certain source; assessing to at least one given snapshot an assessed value characterized by at least one of the following values and/or derivatives thereof: i. a first value characterizing the amount of unique physical data blocks associated, merely, with said given snapshot; ii. a second value characterizing the amount of unique physical blocks associated merely with a certain group of snapshots comprising said given snapshot; iii a combination of the first and the second value; and updating the assessed value responsive to a pre-defined event. The method can further comprise generating an alert when the updated assessed value and/or derivatives thereof match a pre-defined criterion; and/or providing an indication of amount of physical resources to be freed resulting from deleting at least the given snapshot, wherein said indication corresponds to the updated assessed value; and/or generating deletion recommendation in accordance with the updated assessed value; and/or auto…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.