Title:
INFORMATION STORAGE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2015/162634
Kind Code:
A1
Abstract:
Provided is an information storage system including a first storage apparatus configured to provide a first logical volume, a second storage apparatus configured to provide a second logical volume, and a quorum accessed from the first storage apparatus and the second storage apparatus and including information regarding states of the first storage apparatus and the second storage apparatus. The second storage apparatus is configured to, after detecting communication failure with the quorum, halt use of the quorum and check communication with the first storage apparatus for failure before responding to the host for each of read and write commands sent from the host.
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Inventors:
JOHRI ABHISHEK (JP)
SATO TAKAHITO (JP)
SAITO HIDEO (JP)
KAWAGUCHI TOMOHIRO (JP)
SATO TAKAHITO (JP)
SAITO HIDEO (JP)
KAWAGUCHI TOMOHIRO (JP)
Application Number:
PCT/JP2014/002246
Publication Date:
October 29, 2015
Filing Date:
April 21, 2014
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
G06F13/10; G06F12/00
Foreign References:
| US8423822B2 | 2013-04-16 | |||
| JP2012531654A | 2012-12-10 | |||
| JP2008299369A | 2008-12-11 | |||
| JP2008530658A | 2008-08-07 |
Attorney, Agent or Firm:
TOU-OU PATENT FIRM (16-4 Toranomon 1-chome, Minato-k, Tokyo 01, JP)
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