公开(公告)号：US20180309852A1

公开(公告)日：2018-10-25

申请号：US16016455

申请日：2018-06-22

Applicant: NetApp Inc.

Inventor： Deepak Raghu KENCHAMMANA-HOSEKOTE ,  Michael R. EISLER ,  Arthur F. LENT ,  Rohul IYER ,  Shravan GAONKAR

IPC: H04L29/06 ,  H04L29/08 ,  G06F3/06 ,  G06F12/0866

Abstract: I/O bandwidth reduction using storage-level common page information is implemented by a storage server, in response to receiving a request from a client for a page stored at a first virtual address, determining that the first virtual address maps to a page that is a duplicate of a page stored at a second virtual address or that the first and second virtual addresses map to a deduplicated page within a storage system, and transmitting metadata to the client mapping the first virtual address to a second virtual address that also maps to the deduplicated page. For one embodiment, the metadata is transmitted in anticipation of a request for the redundant/deduplicated page via the second virtual address. For an alternate embodiment, the metadata is sent in response to a determination that a page that maps to the second virtual address was previously sent to the client.

公开(公告)号：US20160198019A1

公开(公告)日：2016-07-07

申请号：US15073006

申请日：2016-03-17

Applicant: NetApp, Inc.

Inventor： Deepak Raghu KENCHAMMANA-HOSEKOTE ,  Michael R. EISLER ,  Arthur F. LENT ,  Rahul IYER ,  Shravan GAONKAR

IPC: H04L29/06 ,  H04L29/08

CPC classification number: H04L67/42 ,  G06F3/06 ,  G06F12/0284 ,  G06F12/0866 ,  G06F12/10 ,  G06F2212/656 ,  H04L67/1097

Abstract: I/O bandwidth reduction using storage-level common page information is implemented by a storage server, in response to receiving a request from a client for a page stored at a first virtual address, determining that the first virtual address maps to a page that is a duplicate of a page stored at a second virtual address or that the first and second virtual addresses map to a deduplicated page within a storage system, and transmitting metadata to the client mapping the first virtual address to a second virtual address that also maps to the deduplicated page. For one embodiment, the metadata is transmitted in anticipation of a request for the redundant/deduplicated page via the second virtual address. For an alternate embodiment, the metadata is sent in response to a determination that a page that maps to the second virtual address was previously sent to the client.

Abstract translation: 响应于从客户端接收针对存储在第一虚拟地址处的页面的请求，由存储服务器实现使用存储级公用页面信息的I / O带宽减少，确定第一虚拟地址映射到 存储在第二虚拟地址处的页面的副本，或者所述第一和第二虚拟地址映射到存储系统内的重复数据删除的页面，以及向所述客户端发送元数据，所述客户端将所述第一虚拟地址映射到也映射到所述第二虚拟地址的第二虚拟地址 重复数据删除的页面。 对于一个实施例，在预期通过第二虚拟地址对冗余/重复数据删除页面的请求的情况下发送元数据。 对于替代实施例，响应于将映射到第二虚拟地址的页面先前发送到客户端的确定来发送元数据。