| 主权项 |
1. A computer-implemented method, comprising:
determining that a cache is to be migrated from a first storage device to a second storage device, wherein each cache entry within the cache includes an indicator to indicate whether or not the cache entry has long-term utility; selecting cache entries from the cache to be migrated to the second storage device, wherein only a portion of all cache entries are selected to be migrated and the portion is selected from cache entries with the indicator set to indicate long-term utility; and migrating, from the first storage device to the second storage device, the selected cache entries and metadata for cache entries that were not selected to be migrated. |
