公开(公告)号：WO2012177318A1

公开(公告)日：2012-12-27

申请号：PCT/US2012/034788

申请日：2012-04-24

Applicant: NETAPP, INC. ,  PERIYAGARAM, Subramaniam ,  YADAV, Sandeep ,  LEWIS, Blake ,  FAITH, Rickard, E. ,  PRAKASH, Ashish ,  KESAVAN, Ram ,  SUBRAMANIAN, Ananthan

Inventor： PERIYAGARAM, Subramaniam ,  YADAV, Sandeep ,  LEWIS, Blake ,  FAITH, Rickard, E. ,  PRAKASH, Ashish ,  KESAVAN, Ram ,  SUBRAMANIAN, Ananthan

IPC: G06F3/06 ,  G06F17/30

CPC classification number: G06F17/30156 ,  G06F3/0608 ,  G06F3/0641

Abstract: A request is received to remove duplicate data. A log data container associated with a storage volume in a storage server is accessed. The log data container includes a plurality of entries. Each entry is identified by an extent identifier in a data structures stored in a volume associated with the storage server. For each entry in the log data container, a determination is made if the entry matches another entry in the log data container. If the entry matches another entry in the log data container, a determination is made of a donor extent and a recipient extent. If an external reference count associated with the recipient extent equals a first predetermined value, block sharing is performed for the donor extent and the recipient extent. A determination is made if the reference count of the donor extent equals a second predetermined value. If the reference count of the donor extent equals the second predetermined value, the donor extent is freed.

Abstract translation: 收到请求以删除重复的数据。 访问与存储服务器中的存储卷相关联的日志数据容器。 日志数据容器包括多个条目。 每个条目由存储在与存储服务器相关联的卷中的数据结构中的盘区标识符标识。 对于日志数据容器中的每个条目，确定条目是否匹配日志数据容器中的另一个条目。 如果条目与日志数据容器中的另一个条目匹配，则确定捐赠者范围和受众范围。 如果与接收者范围相关联的外部参考计数等于第一预定值，则对捐赠者范围和接受者范围执行块共享。 如果供体范围的参考计数等于第二预定值，则确定。 如果供体范围的参考计数等于第二预定值，则供体范围被释放。

公开(公告)号：WO2013043494A1

公开(公告)日：2013-03-28

申请号：PCT/US2012/055456

申请日：2012-09-14

Applicant: NETAPP, INC. ,  CURLEY, Jonathan ,  JERNIGAN, Richard ,  KESAVAN, Ram

Inventor： CURLEY, Jonathan ,  JERNIGAN, Richard ,  KESAVAN, Ram

IPC: G06F17/30

CPC classification number: G06F17/30215 ,  G06F17/30088

Abstract: Systems and methods which provide an absent allocation technique with respect to absent data of a data structure for which data migration in a time-displaced data migration operation has not completed are disclosed. Through use of absent allocated data block states of an absent allocation technique of embodiments, dependency between source and destination data stores may be broken. An absent allocated data block state of embodiments stored within the data structure provides a suggestive indication that data of a data block of a data structure is absent from the data structure. A corresponding absent allocated data block state of embodiments stored external to the data structure provides a determinative indication that the data of the data block of the data structure is absent from the data structure. The absent data block determinative indictor of embodiments is updated as data continues to be migrated.

Abstract translation: 公开了关于时间偏移数据迁移操作中的数据迁移尚未完成的数据结构的缺失数据提供缺席分配技术的系统和方法。 通过使用缺少分配的数据块状态的实施例的缺少分配技术，源和目的地数据存储之间的依赖可能被破坏。 数据结构中存储的实施例的缺少分配的数据块状态提供了数据结构中不存在数据结构的数据块的数据的暗示性指示。 存储在数据结构外部的实施例的对应的未分配数据块状态提供了数据结构中数据结构的数据块的数据不存在的确定指示。 当数据继续迁移时，更新实施例的不存在的数据块确定指示符。

公开(公告)号：WO2008042437A2

公开(公告)日：2008-04-10

申请号：PCT/US2007021359

申请日：2007-10-03

Applicant: NETWORK APPLIANCE INC ,  ENGLISH ROBERT ,  KESAVAN RAM

Inventor： ENGLISH ROBERT ,  KESAVAN RAM

CPC classification number: G06F17/30079 ,  G06F17/30076 ,  G06F17/30138

Abstract: A filesystem can be converted to a different version by creating a new data structure according to a new format of the different version and transforming the data from the filesystem to the new data structure. Transforming the data can include changing the format of the data in the filesystem to be compatible with the new data structure format. The data may be incorporated into the new data structure by copying the data, or creating indirect reference mechanisms to point to the original data.

Abstract translation: 可以通过根据不同版本的新格式创建新的数据结构并将数据从文件系统转换为新数据结构，将文件系统转换为不同的版本。 转换数据可以包括将文件系统中的数据的格式改变为与新的数据结构格式兼容。 数据可以通过复制数据或创建间接参考机制来指向原始数据而被并入到新的数据结构中。

公开(公告)号：WO2008042437A3

公开(公告)日：2008-04-10

申请号：PCT/US2007/021359

申请日：2007-10-03

Applicant: NETWORK APPLIANCE, INC. ,  ENGLISH, Robert ,  KESAVAN, Ram

Inventor： ENGLISH, Robert ,  KESAVAN, Ram

IPC: G06F17/30

Abstract: A filesystem can be converted to a different version by creating a new data structure according to a new format of the different version and transforming the data from the filesystem to the new data structure. Transforming the data can include changing the format of the data in the filesystem to be compatible with the new data structure format. The data may be incorporated into the new data structure by copying the data, or creating indirect reference mechanisms to point to the original data.