发明名称 |
Logical sector mapping in a flash storage array |
摘要 |
A system and method for efficiently performing user storage virtualization for data stored in a storage system including a plurality of solid-state storage devices. A data storage subsystem supports multiple mapping tables. Records within a mapping table are arranged in multiple levels. Each level stores pairs of a key value and a pointer value. The levels are sorted by time. New records are inserted in a created newest (youngest) level. No edits are performed in-place. All levels other than the youngest may be read only. The system may further include an overlay table which identifies those keys within the mapping table that are invalid. |
申请公布号 |
US8645664(B1) |
申请公布日期 |
2014.02.04 |
申请号 |
US201113289765 |
申请日期 |
2011.11.04 |
申请人 |
COLGROVE JOHN;HAYES JOHN;MILLER ETHAN;WANG FENG;PURE STORAGE, INC. |
发明人 |
COLGROVE JOHN;HAYES JOHN;MILLER ETHAN;WANG FENG |
分类号 |
G06F12/08 |
主分类号 |
G06F12/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|