发明授权
- 专利标题： Storage system providing heterogeneous virtual volumes and storage area re-allocation
- 专利标题（中）： 存储系统提供异构虚拟卷和存储区重新分配
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申请号： US12811275申请日： 2009-12-24
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公开(公告)号： US08489844B2公开(公告)日： 2013-07-16
- 发明人: Daisuke Orikasa , Ken Matsuda , Yutaka Takata , Yoshiaki Eguchi , Ai Satoyama , Yoichi Mizuno
- 申请人： Daisuke Orikasa , Ken Matsuda , Yutaka Takata , Yoshiaki Eguchi , Ai Satoyama , Yoichi Mizuno
- 申请人地址： JP Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Mattingly & Malur, PC
- 国际申请： PCT/JP2009/007207 WO 20091224
- 国际公布： WO2011/077489 WO 20110630
- 主分类号： G06F12/00
- IPC分类号： G06F12/00
摘要：
If an I/O load on a first virtual storage area falls below a first threshold, a controller copies data in a first storage area, which is allocated to the first virtual storage area, to a third storage area in a second tier storage area, and allocates the third storage area instead of the first storage area to the first virtual storage area. If an I/O load on a second virtual storage area exceeds a second threshold which is greater than said first threshold, the controller copies data in a second storage area, which is allocated to the second virtual storage area, to a fourth storage area in a first tier storage area, and allocates the fourth storage area instead of the second storage area to the second virtual storage area.
公开/授权文献
- US20110167236A1 STORAGE SYSTEM PROVIDING VIRTUAL VOLUMES 公开/授权日：2011-07-07