发明名称 |
INTRA-DEVICE DATA PROTECTION IN A RAID ARRAY |
摘要 |
A system and method for intra-device data protection in a RAID array. A computer system comprises client computers and data storage arrays coupled to one another via a network. A data storage array utilizes solid-state drives and Flash memory cells for data storage. A storage controller within a data storage array is configured to identify a unit of data stored in the data storage subsystem, wherein said unit of data is stored across at least a first storage device and a second storage device of the plurality of storage devices, each of the first storage device and the second storage device storing intra-device redundancy data corresponding to the unit of data; and change an amount of intra-device redundancy data corresponding to the unit of data on only the first storage device. |
申请公布号 |
US2014365717(A1) |
申请公布日期 |
2014.12.11 |
申请号 |
US201414450666 |
申请日期 |
2014.08.04 |
申请人 |
PURE Storage, Inc. |
发明人 |
Colgrove John;Hayes John;Hong Bo;Miller Ethan |
分类号 |
G06F3/06 |
主分类号 |
G06F3/06 |
代理机构 |
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代理人 |
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主权项 |
1. A computer system comprising:
a client computer configured to send read and write requests over a network; a data storage subsystem coupled to the network configured to receive the read and write requests, the data storage subsystem comprising a plurality of storage devices; wherein the data storage subsystem further comprises a storage controller configured to:
identify a unit of data stored in the data storage subsystem, wherein said unit of data is stored across at least a first storage device and a second storage device of the plurality of storage devices, each of the first storage device and the second storage device storing intra-device redundancy data corresponding to the unit of data; andchange an amount of intra-device redundancy data corresponding to the unit of data on only the first storage device. |
地址 |
Mountain View CA US |