| 发明名称 | Data redundancy in a cluster system | ||
| 摘要 | A cluster system includes a plurality of computing nodes connected to a network, each node including one or more storage devices. The cluster system stores data and at least one of data replicas or erasure-coded segments across the plurality of nodes based on a redundancy policy. Further, configuration information, which may be indicative of a data placement of the data and the data replicas or erasure-coded segments on the plurality of nodes, is provided to each of the plurality of nodes. Additionally, each of the nodes may act as a first node which is configured to determine, upon a change of the redundancy policy, updated configuration information based on the change of the redundancy policy and to send a message including information indicating the change of the redundancy policy to the other nodes of the plurality of nodes. | ||
| 申请公布号 | US9430484(B2) | 申请公布日期 | 2016.08.30 |
| 申请号 | US201514609598 | 申请日期 | 2015.01.30 |
| 申请人 | Hitachi, Ltd. | 发明人 | Kiselev Oleg;Paul Gaurab;Youngworth Christopher |
| 分类号 | G06F11/00;G06F17/30;G06F11/20;G06F11/16;G06F11/14;G06F11/10;G06F3/06 | 主分类号 | G06F11/00 |
| 代理机构 | Mattingly & Malur, P.C. | 代理人 | Mattingly & Malur, P.C. |
| 主权项 | 1. A cluster system comprising: a plurality of nodes connected to one or more networks, each of the plurality of nodes comprising one or more storage devices, wherein: the cluster system is configured to store data, and at least one of data replicas or erasure-coded segments of the data across the plurality of nodes in the cluster system based at least in part on a redundancy policy;each of the plurality of nodes is configured to send and receive input/output (I/O) operations;configuration information, which is indicative of a data placement of the data and the data replicas or erasure-coded segments on the plurality of nodes, is provided to each of the plurality of nodes; andeach of the nodes is configured to have a function to act as a first node which is configured to determine, upon a change of the redundancy policy, updated configuration information based on the change of the redundancy policy and to send a first message including information indicating the change of the redundancy policy to other nodes of the plurality of nodes, wherein at least one of the other nodes is configured to determine its own updated configuration information based on the change of the redundancy policy included in the first message. | ||
| 地址 | Tokyo JP | ||