Pruning a filemark cache used to cache filemark metadata for virtual tapes

摘要

A method of an aspect includes determining to prune a filemark cache. The filemark cache has entries that each store filemark metadata for a different corresponding filemark of a plurality of open virtual tape files. The method also includes pruning the filemark cache by removing a portion of the entries of the filemark cache. Other methods, apparatus, and articles are also disclosed.

主权项

1. A computer-implemented method comprising:
determining to prune a filemark cache, the filemark cache having entries that each store filemark metadata for a different corresponding filemark of a plurality of open virtual tape files; and pruning the filemark cache by removing a portion of the entries of the filemark cache, including removing entries from a subcache of a plurality of subcaches of the filemark cache, each of the subcaches corresponding to a different one of the open virtual tape files.