| 摘要 |
Storage pages in a data storage application can be designated as having one of a used status, a free status, and a shadow status. The storage pages having the shadow status remain in use but available for conversion to the free status after completion of a savepoint. The storage pages designated to the shadow status can be assigned among at least a first group and a second group. A first savepoint can be invoked during which the storage pages designated to the shadow status and assigned to the first group are converted to the free status, and a second savepoint can be invoked during which the storage pages designated to the shadow status and assigned to the second group are converted to the free status. In this manner, locking of the system during a savepoint is not required. Related methods, systems, and articles of manufacture are also disclosed. |
