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. 16, 2015
Filed:
Jun. 28, 2012
Ryusuke Ito, Fujisawa, JP;
Yusuke Hirakawa, Odawara, JP;
Yoshihiro Asaka, Odawara, JP;
Takashi Kaga, Odawara, JP;
Hiroshi Arakawa, Sunnyvale, CA (US);
Takahiko Takeda, Minamiashigara, JP;
Takao Sato, Odawara, JP;
Ryusuke Ito, Fujisawa, JP;
Yusuke Hirakawa, Odawara, JP;
Yoshihiro Asaka, Odawara, JP;
Takashi Kaga, Odawara, JP;
Hiroshi Arakawa, Sunnyvale, CA (US);
Takahiko Takeda, Minamiashigara, JP;
Takao Sato, Odawara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A remote copy system includes: a first storage system having a first logical volume accompanied with a first plurality of disk drives in the first storage system; a second storage system having a second logical volume, which is a virtual volume not accompanied with a second plurality of disk drives in the second storage system, the virtual volume configuring a first remote copy pair with the first logical volume; and a third storage system having a third logical volume accompanied with a third plurality of disk drives in the third storage system, the third logical volume configuring a second remote copy pair with the virtual volume and storing a copied data of data stored in the first logical volume. If the second storage system receives write data sent from the first storage system to the virtual volume, the second storage system transfers the write data to the third logical volume.