发明授权
US08578090B1 System and method for restriping data across a plurality of volumes
有权
用于在多个卷上重新划分数据的系统和方法
- 专利标题: System and method for restriping data across a plurality of volumes
- 专利标题(中): 用于在多个卷上重新划分数据的系统和方法
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申请号: US11750775申请日: 2007-05-18
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公开(公告)号: US08578090B1公开(公告)日: 2013-11-05
- 发明人: Richard P. Jernigan, IV
- 申请人: Richard P. Jernigan, IV
- 申请人地址: US CA Sunnyvale
- 专利权人: NetApp, Inc.
- 当前专利权人: NetApp, Inc.
- 当前专利权人地址: US CA Sunnyvale
- 代理机构: Cesari and McKenna, LLP
- 主分类号: G06F12/00
- IPC分类号: G06F12/00 ; G06F11/00
摘要:
A system and method re-stripes one or more data containers across a striped volume set (SVS) that has been modified by the addition of one or more volumes. The SVS is associated with an existing set of striping rules that define a stripe algorithm, a stripe width and an ordered list of volumes distributed across a plurality of nodes interconnected as a cluster. Each node of the cluster includes (i) a disk element (D-blade) adapted to service a volume of the SVS and (ii) a network element (N-blade) adapted to redirect a data access request to any D-blade of the cluster. Notably, the content of each data container is apportioned among the volumes of the SVS to thereby improve the efficiency of storage service provided by the cluster. To that end, the stripe algorithm specifies the manner in which the data container content is apportioned as stripes across the plurality of volumes, while the stripe width specifies the size/width of each stripe.
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