公开(公告)号：WO2004061670A2

公开(公告)日：2004-07-22

申请号：PCT/US2003/038247

申请日：2003-12-01

Applicant: STORAGE TECHNOLOGY CORPORATION

Inventor： MILLIGAN, Charles A. ,  NOLAND, Thomas N. ,  HODGE, Leslie K.

IPC: G06F12/00

CPC classification number: G06F17/30067

Abstract: A system and method for providing families of inter-related copies of metadata in which the copies of metadata are logically linked. With the system and method, a mapping table or portion of a mapping table used to manage instant copies of data, i.e. a metadata table, may have multiple identical copies of the metadata table that form a family of inter-related metadata tables. These copies of the metadata table are guaranteed, through the mechanisms of the system and method, to be consistent with each other. Changes to any metadata table in the family are propagated to all the other metadata tables in the family regardless of the physical location at which the metadata table is stored. Thus, the copies of the metadata table may be distributed to remote physical locations and be used to access the same set of data stored in one physical location, while remaining consistent with each other copy of the metadata table stored at other physical locations.

Abstract translation: 一种用于提供元数据的相互关联的副本的系列和方法，其中元数据的副本在逻辑上被链接。 利用系统和方法，映射表或用于管理数据的即时副本（即元数据表）的映射表的一部分可以具有形成一系列相互关联的元数据表的元数据表的多个相同副本。 通过系统和方法的机制，保证元数据表的这些副本彼此一致。 家族中任何元数据表的更改都将传播到系列中的所有其他元数据表，而不管存储元数据表的物理位置如何。 因此，元数据表的副本可以被分发到远程物理位置，并且被用于访问存储在一个物理位置中的相同的一组数据，同时保持与存储在其他物理位置处的元数据表的每个其他副本一致。

公开(公告)号：EP1629400A2

公开(公告)日：2006-03-01

申请号：EP03790224.4

申请日：2003-12-01

Applicant: STORAGE TECHNOLOGY CORPORATION

Inventor： MILLIGAN, Charles A. ,  NOLAND, Thomas N. ,  HODGE, Leslie K.

IPC: G06F17/30

CPC classification number: G06F17/30067

Abstract: A system and method for providing families of inter-related copies of metadata in which the copies of metadata are logically linked. With the system and method, a mapping table or portion of a mapping table used to manage instant copies of data, i.e. a metadata table, may have multiple identical copies of the metadata table that form a family of inter-related metadata tables. These copies of the metadata table are guaranteed, through the mechanisms of the system and method, to be consistent with each other. Changes to any metadata table in the family are propagated to all the other metadata tables in the family regardless of the physical location at which the metadata table is stored. Thus, the copies of the metadata table may be distributed to remote physical locations and be used to access the same set of data stored in one physical location, while remaining consistent with each other copy of the metadata table stored at other physical locations.