The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 04, 2013
Filed:
Jun. 11, 2012
Norie Iwasaki, Fujisawa, JP;
Koichi Masuda, Yokohama, JP;
Tadaaki Minoura, Yamato, JP;
Tomokazu Nakamura, Kawasaki, JP;
Takeshi Sohda, Sagamihara, JP;
Takahiro Tsuda, Yokohama, JP;
Norie Iwasaki, Fujisawa, JP;
Koichi Masuda, Yokohama, JP;
Tadaaki Minoura, Yamato, JP;
Tomokazu Nakamura, Kawasaki, JP;
Takeshi Sohda, Sagamihara, JP;
Takahiro Tsuda, Yokohama, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Various embodiments save a plurality of log data in a hierarchical storage management system using a disk system as a primary cache with a tape library as a secondary cache. The user data is stored in the primary cache and written into the secondary cache at a subsequent period of time. The plurality of blank tapes in the secondary cache is prepared for storing the user data and the plurality of log data based on priorities. At least one of the plurality of blank tapes is selected for copying the plurality of log data and the user data from the primary cache to the secondary cache based on priorities. The plurality of log data is stored in the primary cache. The selection of at least one of the plurality of blank tapes completely filled with the plurality of log data is delayed for writing additional amounts of user data.