Title:
非常に短い更新インターバルで同期データ複製が可能なシステム及び方法
Document Type and Number:
Japanese Patent JP5166735
Kind Code:
B2
Abstract:
A system and method for improving the efficiency of the transmission of updated blocks generated by logging all the block allocations and deletes as well as CPs and PCPI creation and deletion in a persistent log. The log is scanned during each update cycle (in which changes are transmitted to a destination mirror) by the storage operating system, and only changed blocks that are referenced by the file system as it existed at the end of the update cycle or referenced by PCPIs that existed at the end of the update cycle are actually sent in the transmission. This reduces the number of changes being transmitted.
Inventors:
Chen, Raymond, Sea
Application Number:
JP2006545561A
Publication Date:
March 21, 2013
Filing Date:
December 17, 2004
Export Citation:
Assignee:
NetApp, Inc.
International Classes:
G06F12/00; G06F11/14; G06F11/20; G06F17/30
Domestic Patent References:
| JP2005510805A | ||||
| JP962555A |
Foreign References:
| WO2003046759A2 |
Other References:
茂木 龍太 他,1ランク上を目指すLANを活用した新世代バックアップ法,日経Windowsプロ,日経BP社,2001年11月1日,第56号,p.106~115
Attorney, Agent or Firm:
Satoshi Furuya
Takahiko Mizobe
Kiyoharu Nishiyama
Takahiko Mizobe
Kiyoharu Nishiyama