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公开(公告)号:US08892938B1
公开(公告)日:2014-11-18
申请号:US14161281
申请日:2014-01-22
Applicant: NetApp, Inc.
Inventor: Rajesh Sundaram , Bharat Baddepudi
CPC classification number: G06F11/2069 , G06F3/0604 , G06F3/0619 , G06F3/0632 , G06F3/0634 , G06F3/065 , G06F3/0659 , G06F3/0689 , G06F11/2092 , G06F2201/805 , G06F2201/82
Abstract: In one embodiment, RAID-related metadata may be stored on a distributed database of a cluster (i.e., a cluster database), which is separate and apart from a storage array of SSDs configured to serve as main storage for nodes of the cluster. The RAID-related metadata may be embodied as RAID labels (or other data structures) having configuration information that identifies one or more RAID groups associated with an extent store and storage devices, e.g., SSDs, within each RAID group. Each SSD may be part of a RAID configuration topology tree structure that defines an extent store using a multi-level hierarchy (e.g., three levels), wherein the first level of the tree identifies the SSD, the second level identifies the RAID group to which the SSD belongs, and the third level identifies the extent store or storage container to which the RAID group belongs.
Abstract translation: 在一个实施例中,可以将RAID相关元数据存储在集群(即,集群数据库)的分布式数据库上,该集群数据库与被配置为充当该集群的节点的主存储的SSD的存储阵列分开并分开。 RAID相关元数据可以体现为具有标识与每个RAID组内的盘区存储和存储设备(例如,SSD)相关联的一个或多个RAID组的配置信息的RAID标签(或其他数据结构)。 每个SSD可以是RAID配置拓扑树结构的一部分,其定义使用多级层级(例如,三个级别)的盘区存储,其中树的第一级标识SSD,第二级标识到其中的RAID组 SSD属于,第三级标识RAID组所属的盘区存储或存储容器。