Invention Grant
US08145840B2 Method and system for storing excess data in a redundant array of independent disk level 6
有权
用于将多余数据存储在独立磁盘级别6的冗余阵列中的方法和系统
- Patent Title: Method and system for storing excess data in a redundant array of independent disk level 6
- Patent Title (中): 用于将多余数据存储在独立磁盘级别6的冗余阵列中的方法和系统
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Application No.: US12478771Application Date: 2009-06-05
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Publication No.: US08145840B2Publication Date: 2012-03-27
- Inventor: Sunny Koul , Ranjan Kumar , Gururaj Shivashankar Morabad
- Applicant: Sunny Koul , Ranjan Kumar , Gururaj Shivashankar Morabad
- Applicant Address: US CA Milpitas
- Assignee: LSI Corporation
- Current Assignee: LSI Corporation
- Current Assignee Address: US CA Milpitas
- Agency: Global IP Services, PLLC
- Agent Prakash Nama
- Main IPC: G06F12/06
- IPC: G06F12/06
Abstract:
A method and system for storing excess data in a redundant array of independent disks (RAID) level 6 are disclosed. In one embodiment, a method for storing excess data in a RAID 6 volume includes writing excess data to Q parity blocks of a first RAID 6 volume when a receipt of the excess data directed to the first RAID 6 volume is detected subsequent to a saturation of the first RAID 6 volume, where the first RAID 6 volume is converted to a pseudo-RAID 5 volume with P parity blocks. The method further includes re-computing the P parity blocks of the pseudo-RAID 5 volume based on data blocks of the pseudo-RAID 5 volume. In addition, the method includes constructing a second RAID 6 volume based on the pseudo-RAID 5 volume when at least one additional drive is inserted to the pseudo-RAID 5 volume.
Public/Granted literature
- US20100312961A1 METHOD AND SYSTEM FOR STORING EXCESS DATA IN A REDUNDANT ARRAY OF INDEPENDENT DISK LEVEL 6 Public/Granted day:2010-12-09
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