发明授权
US07171434B2 Detecting unavailability of primary central processing element, each backup central processing element associated with a group of virtual logic units and quiescing I/O operations of the primary central processing element in a storage virtualization system
有权
检测主中央处理元件的不可用性，与一组虚拟逻辑单元相关联的每个备份中央处理元件和静态存储虚拟化系统中的主中央处理元件的I / O操作
- 专利标题： Detecting unavailability of primary central processing element, each backup central processing element associated with a group of virtual logic units and quiescing I/O operations of the primary central processing element in a storage virtualization system
- 专利标题（中）： 检测主中央处理元件的不可用性，与一组虚拟逻辑单元相关联的每个备份中央处理元件和静态存储虚拟化系统中的主中央处理元件的I / O操作
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申请号： US10238804申请日： 2002-09-09
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公开(公告)号： US07171434B2公开(公告)日： 2007-01-30
- 发明人: Rahim Ibrahim , Tuan Nguyen , Ashish Shah , Ranjit Ghate , Chan Ng , Gen-Hwa Chiang
- 申请人： Rahim Ibrahim , Tuan Nguyen , Ashish Shah , Ranjit Ghate , Chan Ng , Gen-Hwa Chiang
- 申请人地址： US CA Sunnyvale
- 专利权人： Network Appliance, Inc.
- 当前专利权人： Network Appliance, Inc.
- 当前专利权人地址： US CA Sunnyvale
- 代理机构： Wiesner & Associates
- 代理商 Leland Wiesner
- 主分类号： G06F17/30
- IPC分类号： G06F17/30 ; G06F7/00 ; G06F12/00
摘要：
A storage virtualization system for accessing at least one storage device for a virtual logical unit (VLUN) from at least one host. The system includes at least one upstream processing element (UPE) which is adapted for coupling to a corresponding host server. The system is further adapted for coupling to at least one storage device. The controller also includes a primary central processing element (CPE) that can be configurably coupled to the UPEs. The primary CPE permits data transfer to occur between a host and a storage device via the corresponding UPE. The controller further includes a backup CPE that can be configurably coupled to the UPEs. The backup CPE is configurable to permit the data transfer when the primary CPE becomes unavailable.
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