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:
Sep. 18, 2012
Filed:
Jul. 23, 2010
Tomoki Shoji, Fujisawa, JP;
Takuya Okamoto, Machida, JP;
Hidehisa Shitomi, Yokohoma, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Data migration is efficiently executed with optional timing. A file server outputs an instruction to a CPU of a storage apparatus to migrate a file belonging to Tierto Tierwhen, based on policy information, a condition for migrating the file belonging to Tierto Tieris fulfilled. Based on the instruction from the file server, the CPU copies the data of migration target files in Tierfrom a page to a Tiervirtual page, copies the data which has been copied to the Tiervirtual pageto a Tiervirtual page, copies the data which has been copied to the Tiervirtual page to any page in Tier, and then overwrites and releases the Tierand Tiervirtual pages, and migrates files belonging to Tierto Tier