公开(公告)号：US08504526B2

公开(公告)日：2013-08-06

申请号：US12982165

申请日：2010-12-30

申请人： Parag Gokhale ,  Prakash Varadharajan ,  Pavlo Mazur

发明人： Parag Gokhale ,  Prakash Varadharajan ,  Pavlo Mazur

IPC分类号： G06F13/00

CPC分类号： G06F11/1464 ,  G06F11/1446 ,  G06F11/1451 ,  G06F11/1466 ,  G06F11/1471 ,  G06F11/2023 ,  G06F17/30067 ,  G06F17/30073 ,  G06F17/30289 ,  H04L41/08

摘要： In certain embodiments, a tiered storage system is disclosed that provides for failover protection during data backup operations. The system can provide for an index, or catalog, for identifying and enabling restoration of backup data located on a storage device. The system further maintains a set of transaction logs generated by media agent modules that identify metadata with respect to individual data chunks of a backup file on the storage device. A copy of the catalog and transaction logs can be stored at a location accessible by each of the media agent modules. In this manner, in case of a failure of one media agent module during backup, the transaction logs and existing catalog can be used by a second media agent module to resume the backup operation without requiring a restart of the backup process.

公开(公告)号：US20110302140A1

公开(公告)日：2011-12-08

申请号：US12982165

申请日：2010-12-30

申请人： Parag Gokhale ,  Prakash Varadharajan ,  Pavlo Mazur

发明人： Parag Gokhale ,  Prakash Varadharajan ,  Pavlo Mazur

IPC分类号： G06F17/30

CPC分类号： G06F11/1464 ,  G06F11/1446 ,  G06F11/1451 ,  G06F11/1466 ,  G06F11/1471 ,  G06F11/2023 ,  G06F17/30067 ,  G06F17/30073 ,  G06F17/30289 ,  H04L41/08

摘要： In certain embodiments, a tiered storage system is disclosed that provides for failover protection during data backup operations. The system can provide for an index, or catalog, for identifying and enabling restoration of backup data located on a storage device. The system further maintains a set of transaction logs generated by media agent modules that identify metadata with respect to individual data chunks of a backup file on the storage device. A copy of the catalog and transaction logs can be stored at a location accessible by each of the media agent modules. In this manner, in case of a failure of one media agent module during backup, the transaction logs and existing catalog can be used by a second media agent module to resume the backup operation without requiring a restart of the backup process.

摘要翻译： 在某些实施例中，公开了在数据备份操作期间提供故障转移保护的分层存储系统。 该系统可以提供索引或目录，用于识别并启用位于存储设备上的备份数据的恢复。 该系统进一步维护由媒体代理模块生成的一组事务日志，该集合识别关于存储设备上的备份文件的各个数据块的元数据。 目录和事务日志的副本可以存储在每个媒体代理模块可访问的位置。 以这种方式，在备份期间一个媒体代理模块发生故障的情况下，可以由第二媒体代理模块使用事务日志和现有目录来恢复备份操作，而不需要重新启动备份过程。