| 发明名称 | Data de-duplication for information storage systems | ||
| 摘要 | Technologies for eliminating duplicate data within a storage system. De-duplication may be performed done at physical chunk level, where the data is not copied or moved to different location. A logical mapping is modified using a thin de-duplication kernel module that resides between a distributed volume manager (DVM) and a logical disk (LD). De-duplication is achieved by changing pointers in the mapping to land at a physical location. De-duplication is performed as post-process feature where duplicates are indentified and the duplicates are marked in the mapping table, thereby claiming free space through de-duplication. Block-level de-duplication in accordance with the above can co-exist with existing storage architectures for thin provisioning and snapshot management. | ||
| 申请公布号 | US8930653(B1) | 申请公布日期 | 2015.01.06 |
| 申请号 | US201213450451 | 申请日期 | 2012.04.18 |
| 申请人 | American Megatrends, Inc. | 发明人 | Chatterjee Paresh;Balakrishnan Narayanan;Ramasamy Senthilkumar;Mahalingam Anandh |
| 分类号 | G06F12/00;G06F13/00;G06F13/28;G06F11/14 | 主分类号 | G06F12/00 |
| 代理机构 | Meunier Carlin & Curfman, LLC | 代理人 | Meunier Carlin & Curfman, LLC |
| 主权项 | 1. A method for removing duplicate data within a data storage system, comprising: identifying duplicated data within the data storage system; initializing a de-duplication table; creating at least one circular list of indices in the de-duplication table, wherein each of the indices points to a physical location having a same data; receiving I/O requests; and mapping the I/O requests to the physical location using the de-duplication table. | ||
| 地址 | Norcross GA US | ||