Invention Grant
- Patent Title: Disk array device, control device and data write method
- Patent Title (中): 磁盘阵列设备，控制设备和数据写入方式
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Application No.: US13650682Application Date: 2012-10-12
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Publication No.: US09128846B2Publication Date: 2015-09-08
- Inventor: Ryota Tsukahara , Norihide Kubota , Atsushi Igashira , Kenji Kobayashi , Hidejirou Daikokuya , Kazuhiko Ikeuchi , Takeshi Watanabe
- Applicant: FUJITSU LIMITED
- Applicant Address: JP Kawasaki
- Assignee: FUJITSU LIMITED
- Current Assignee: FUJITSU LIMITED
- Current Assignee Address: JP Kawasaki
- Agency: Staas & Halsey LLP
- Priority: JP2011-272832 20111213
- Main IPC: G06F12/08
- IPC: G06F12/08 ; G06F11/10 ; G06F3/06
Abstract:
A disk array device includes: a plurality of disk devices including a strip that stores divided data or a parity; a control device to divide the stripe for each of the plurality of disk devices into the divided data having a size of the strip and write the divided data; and a memory to store new data that corresponds to the divided data stored in the strip, wherein the control device detects whether or not the new data is discrete and performs a first write operation or a second write operation when the new data is discrete.
Public/Granted literature
- US20130151771A1 DISK ARRAY DEVICE, CONTROL DEVICE AND DATA WRITE METHOD Public/Granted day:2013-06-13
Information query
