| 摘要 |
A method and apparatus for managing write operations in memory. The method includes a memory including units, each of the units including subunits. Data updates are written “out-of-place”, in that new data does not overwrite the memory locations (subunits) where the data is currently stored. The at least one subunit containing the outdated data is marked as invalid. As a result, a subunit can contain up to date data in a valid subunit next to invalid subunits. For reclaiming units for erasure, it is searched amongst the units to identify a unit or units that match a predetermined criterion. The data of valid subunits of such identified unit is rewritten to another unit or units.
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