公开(公告)号：US20120158652A1

公开(公告)日：2012-06-21

申请号：US12968297

申请日：2010-12-15

Applicant: Pavan Ps ,  Mahmoud K. Jibbe ,  Vivek Prakash ,  Madhukar Gunjan Chakhaiyar

Inventor： Pavan Ps ,  Mahmoud K. Jibbe ,  Vivek Prakash ,  Madhukar Gunjan Chakhaiyar

IPC: G06F17/30

CPC classification number: G06F11/1451 ,  G06F2201/82

Abstract: A system and method for ensuring consistency in RAID storage array metadata is disclosed. In one embodiment, the RAID storage array metadata residing in one or more drives is consolidated onto a metadata base volume that is in sync with the current RAID storage array metadata. Further, a point-in-time (PIT) image of the consolidated RAID storage array metadata in the metadata base volume, a system configuration (SC) file, and customer support data (CSD) are obtained. The PIT image, the SC file and CSD can be obtained based on a predetermined time interval and/or upon a change on the RAID storage array metadata. Furthermore, a delta change between two substantially sequentially obtained PIT images, SC files and CSD are determined. In addition, a consistency check (CC) is performed on the RAID storage array metadata based on the determined delta change.

Abstract translation: 公开了一种确保RAID存储阵列元数据一致性的系统和方法。 在一个实施例中，驻留在一个或多个驱动器中的RAID存储阵列元数据被整合到与当前RAID存储阵列元数据同步的元数据基本卷上。 此外，获得元数据基本卷中的整合RAID存储阵列元数据的时间点（PIT）图像，系统配置（SC）文件和客户支持数据（CSD）。 可以基于预定的时间间隔和/或在RAID存储阵列元数据的变化时获得PIT图像，SC文件和CSD。 此外，确定两个基本上顺序获得的PIT图像，SC文件和CSD之间的delta变化。 此外，基于所确定的增量变化，对RAID存储阵列元数据执行一致性检查（CC）。