公开(公告)号：US20140325157A1

公开(公告)日：2014-10-30

申请号：US13871783

申请日：2013-04-26

Applicant: NetApp, Inc.

Inventor： Satish Sangapu ,  Wei Sun ,  Keith Moyer ,  Charles Binford

IPC: G06F3/06 ,  G06F12/08

CPC classification number: G06F3/061 ,  G06F3/0659 ,  G06F3/0689 ,  G06F11/2071 ,  G06F11/2082 ,  G06F12/0866 ,  G06F12/0875 ,  G06F2212/466

Abstract: An I/O processing stack includes a proxy that can provide processing services for access requests to initialized and uninitialized storage regions. For a write request, the proxy stores write information in a write metadata repository. If the write is requested for an address in an initialized storage region of the storage system, the proxy performs a write to the initialized region based on region information in the write I/O access request. If the write is requested for an address in an uninitialized storage region of the storage system, the proxy performs an on-demand initialization of the storage region and then performs a write to the storage region based on region information provided by the proxy.

Abstract translation: I / O处理堆栈包括可以为初始化和未初始化的存储区域的访问请求提供处理服务的代理。 对于写入请求，代理将写入信息存储在写入元数据存储库中。 如果对存储系统的初始化存储区域中的地址请求写入，则代理根据写入I / O访问请求中的区域信息执行对初始化区域的写入。 如果对存储系统的未初始化存储区域中的地址请求写入，则代理执行存储区域的按需初始化，然后基于由代理提供的区域信息对存储区域进行写入。