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:
Jan. 10, 2023
Filed:
Feb. 26, 2021
Applicant:
Hitachi, Ltd., Tokyo, JP;
Inventors:
Hiroto Ebara, Tokyo, JP;
Yoshinori Ohira, Tokyo, JP;
Takaki Nakamura, Tokyo, JP;
Masakuni Agetsuma, Tokyo, JP;
Assignee:
HITACHI, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 3/06 (2006.01); G06F 12/10 (2016.01);
U.S. Cl.
CPC ...
G06F 3/0647 (2013.01); G06F 3/067 (2013.01); G06F 3/0611 (2013.01); G06F 3/0644 (2013.01); G06F 12/10 (2013.01); G06F 2212/1024 (2013.01);
Abstract
Each server stores metadata for managing a volume having a logical block mapped to physical blocks of storage devices, and provides a compute host with the volume according to the metadata. A computer system calculates the metadata amount, which is the data amount of the metadata of the volume, for each volume, determines a migration target volume from the volumes based on each metadata amount, and performs volume migration that transfers the computer node that provides the compute host with the migration target volume to a migration destination computer node.