专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP3107005A1 METHOD AND DEVICE FOR RECOVERING CHECKPOINT IN COPY ON WRITE BASED FILE SYSTEM 有权转让
标题翻译： VERFAHREN UND VORRICHTUNG ZURPRÜFPUNKTWIEDERHERSTELLUNGIN EINEM COPY-ON-WRITE-DATEISYSTEM
公开(公告)号：EP3107005A1
公开(公告)日：2016-12-21
申请号：EP14893559.6
申请日：2014-10-24
申请人： Huawei Technologies Co. Ltd.
发明人： XIE, Yong , LI, Yuguo , ZHONG, Yanhui , FU, Xudong
IPC分类号： G06F17/30
CPC分类号： G06F17/30088 , G06F17/30 , G06F17/30079
摘要： Embodiments of the present invention disclose a checkpoint reclaim method and apparatus in a copy-on-write file system. The checkpoint reclaim method includes: obtaining, according to a checkpoint reclaim instruction, M data blocks allocated by the file system between a moment of a previous checkpoint reclaim and a moment of a current checkpoint reclaim, where M is an integer not less than 1, and the M data blocks are data blocks allocated for at least one of a checkpoint or a snapshot generated between the moment of the previous checkpoint reclaim and the moment of the current checkpoint reclaim; performing an addition operation with a fixed step on a reference count of a data block that needs to be reserved in the M data blocks, and determining, in the M data blocks, a first data block that needs to be reclaimed; determining, in N data blocks allocated for at least one of a checkpoint or a snapshot reserved at the moment of the previous checkpoint reclaim, a second data block that needs to be reclaimed, where N is an integer not less than 1; and reclaiming the first data block and the second data block.
摘要翻译：本发明的实施例公开了一种在写时拷贝文件系统中的检查点回收方法和装置。检查点回收方法包括：根据检查点回收指令，在先前检查点回收的时刻和当前检查点回收的时刻之间获取由文件系统分配的M个数据块，其中M是不小于1的整数， M数据块是分配给在先前检查点回收的时刻与当前检查点回收的时刻之间生成的检查点或快照中的至少一个的数据块; 对需要在M个数据块中保留的数据块的参考计数执行固定步骤的加法运算，以及在M个数据块中确定需要回收的第一数据块; 确定在为先前检查点回收时保留的检查点或快照中的至少一个分配的N个数据块中确定需要回收的第二数据块，其中N是不小于1的整数; 以及回收第一数据块和第二数据块。

2. 发明公开

EP3425493A1 DATA PROCESSING METHOD AND APPARATUS 无效
公开(公告)号：EP3425493A1
公开(公告)日：2019-01-09
申请号：EP18161386.0
申请日：2012-12-28
申请人： Huawei Technologies Co., Ltd.
发明人： ZHONG, Yanhui , ZHANG, Zongquan
IPC分类号： G06F3/06 , G06F17/30 , G06F12/0868
摘要： Embodiments of the present invention provide a data processing method and apparatus. According to the embodiments of the present invention, when it is found that a data hash value in a currently received data stream exceeds a preset first threshold, a part or all of data in the data stream is not deduplicated, and is directly stored, so as to prevent the data in the data stream from being dispersedly stored into a plurality of storage areas; instead, the part or all of the data is stored into a storage area in a centralized manner, so that a deduplication rate is effectively improved on the whole, particularly in a scenario of large data storage amount.

3. 发明公开

EP3200096A1 REMOTE REPLICATION METHOD AND APPARATUS BASED ON DUPLICATED DATA DELETION 审中-公开
标题翻译：基于重复数据删除的远程复制方法和设备
公开(公告)号：EP3200096A1
公开(公告)日：2017-08-02
申请号：EP15874905.1
申请日：2015-09-18
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： ZHONG, Yanhui , ZHANG, Chengwei
IPC分类号： G06F17/30
CPC分类号： G06F17/30159 , G06F11/1453 , G06F17/30 , G06F17/30088 , G06F17/301 , G06F17/30156 , G06F17/30215
摘要： A de-duplication-based remote replication method and an apparatus are provided. The de-duplication-based remote replication method is applied to a remote replication system, where the system includes a primary end device and a disaster recovery end device, and both the primary end device and the disaster recovery end device store a first snapshot; and the method includes: obtaining, by the primary end device, a second snapshot of the primary end device (101); determining, by the primary end device, whether fingerprints of data blocks added in the second snapshot compared with the first snapshot are the same as fingerprints of data blocks in the first snapshot (102); and when a fingerprint of a first data block in the added data blocks is different from the fingerprints of the data blocks in the first snapshot, sending the first data block, the fingerprint of the first data block, and metadata of the added data blocks to the disaster recovery end device (103). The method and the apparatus improve performance of remote replication of disaster recovery backup.
摘要翻译：提供了一种基于去重复的远程复制方法和装置。所述基于重复数据删除的远程复制方法应用于远程复制系统，所述系统包括主终端设备和灾备终端设备，主终端设备和灾备终端设备都存储第一快照; 所述方法包括：所述主终端设备获取所述主终端设备的第二快照; 所述主终端设备确定与所述第一快照相比，所述第二快照中添加的数据块的指纹是否与所述第一快照中的数据块的指纹相同; 当所述增加的数据块中的第一数据块的指纹与所述第一快照中的数据块的指纹不同时，将所述第一数据块，所述第一数据块的指纹以及所述增加的数据块的元数据发送给灾难恢复终端设备（103）。该方法和装置提高了灾备备份的远程复制性能。

4. 发明授权

EP3107005B1 METHOD AND DEVICE FOR RECOVERING CHECKPOINT IN COPY ON WRITE BASED FILE SYSTEM 有权转让
标题翻译：在基于写入的文件系统中复制复制检查点的方法和设备
公开(公告)号：EP3107005B1
公开(公告)日：2018-03-14
申请号：EP14893559.6
申请日：2014-10-24
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： XIE, Yong , LI, Yuguo , ZHONG, Yanhui , FU, Xudong
IPC分类号： G06F17/30
CPC分类号： G06F17/30088 , G06F17/30 , G06F17/30079
摘要： Embodiments of the present invention disclose a checkpoint reclaim method and apparatus in a copy-on-write file system. The checkpoint reclaim method includes: obtaining, according to a checkpoint reclaim instruction, M data blocks allocated by the file system between a moment of a previous checkpoint reclaim and a moment of a current checkpoint reclaim, where M is an integer not less than 1, and the M data blocks are data blocks allocated for at least one of a checkpoint or a snapshot generated between the moment of the previous checkpoint reclaim and the moment of the current checkpoint reclaim; performing an addition operation with a fixed step on a reference count of a data block that needs to be reserved in the M data blocks, and determining, in the M data blocks, a first data block that needs to be reclaimed; determining, in N data blocks allocated for at least one of a checkpoint or a snapshot reserved at the moment of the previous checkpoint reclaim, a second data block that needs to be reclaimed, where N is an integer not less than 1; and reclaiming the first data block and the second data block.

5. 发明公开

EP2770446A1 DATA PROCESSING METHOD AND DEVICE 审中-公开
标题翻译： DORNVERARBEITUNGSVERFAHREN UND VORRICHTUNG
公开(公告)号：EP2770446A1
公开(公告)日：2014-08-27
申请号：EP12878641.5
申请日：2012-12-28
申请人： Huawei Technologies Co., Ltd.
发明人： ZHONG, Yanhui , ZHANG, Zongquan
IPC分类号： G06F17/30
CPC分类号： G06F3/0641 , G06F3/0608 , G06F3/061 , G06F3/0619 , G06F3/067 , G06F3/0673 , G06F12/0868 , G06F12/0875 , G06F2212/452
摘要： Embodiments of the present invention provide a data processing method and apparatus. According to the embodiments of the present invention, when it is found that a data hash value in a currently received data stream exceeds a preset first threshold, a part or all of data in the data stream is not deduplicated, and is directly stored, so as to prevent the data in the data stream from being dispersedly stored into a plurality of storage areas; instead, the part or all of the data is stored into a storage area in a centralized manner, so that a deduplication rate is effectively improved on the whole, particularly in a scenario of large data storage amount.
摘要翻译：本发明的实施例提供一种数据处理方法和装置。根据本发明的实施例，当发现当前接收的数据流中的数据散列值超过预设的第一阈值时，数据流中的部分或全部数据流不被重复数据删除，因此直接存储以防止数据流中的数据被分散地存储到多个存储区域中; 相反，部分或全部数据以集中的方式存储在存储区域中，从而整体上有效地提高了重复数据删除率，特别是在大数据存储量的情况下。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式