公开(公告)号：WO2014089413A1

公开(公告)日：2014-06-12

申请号：PCT/US2013/073537

申请日：2013-12-06

Applicant: NETAPP, INC.

Inventor： STORER, Mark Walter

IPC: G06F17/30 ,  G06F12/14

CPC classification number: G06F11/2094 ,  G06F11/1004 ,  G06F11/1092 ,  G06F2201/805 ,  G06F2211/1061

Abstract: Methods and apparatuses for updating members of a data storage reliability group are provided. In one exemplary method, a reliability group includes a data zone in a first storage node and a checksum zone in a second data storage node. The method includes updating a version counter associated with the data zone in response to destaging a data object from a staging area of the data zone to a store area of the data zone without synchronizing the destaging with the state of the checksum zone. The method further includes transmitting, from the data zone to the checksum zone, an update message indicating completion of the destaging of the data object, wherein the update message includes a current value of the version counter.

Abstract translation: 提供了更新数据存储可靠性组的成员的方法和装置。 在一个示例性方法中，可靠性组包括第一存储节点中的数据区和第二数据存储节点中的校验和区。 该方法包括更新与数据区域相关联的版本计数器，以响应于将数据对象从数据区域的暂存区域降级到数据区域的存储区域，而不使分级与校验和区域的状态同步。 所述方法还包括从所述数据区向所述校验和区发送指示所述数据对象的分级的完成的更新消息，其中所述更新消息包括所述版本计数器的当前值。

公开(公告)号：EP2936321B1

公开(公告)日：2018-07-04

申请号：EP13865475.1

申请日：2013-12-18

Applicant: NetApp, Inc.

Inventor： BAIRAVASUNDARAM, Lakshmi Narayanan ,  SOUNDARARAJAN, Gokul ,  STORER, Mark Walter ,  ZHANG, Yiying

IPC: G06F12/0862

CPC classification number: G06F12/0848 ,  G06F12/0804 ,  G06F12/0862 ,  G06F12/0868 ,  G06F12/0888

Abstract: Described herein is a system and method for an efficient cache warm-up. The system and method may copy data blocks from a primary storage device to a cache memory device. The system and method may identify a subset of data blocks stored on the primary storage device as candidate data blocks for copying to the cache memory device during a cache warm-up period. A cost effectiveness for copying the candidate data blocks to the cache memory device may be determined. In some embodiments, the cost effectiveness may be calculated based on one or more latency values associated with the primary storage device and the cache memory device. The candidate data blocks may be copied to the cache memory device based on the cost effectiveness.