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1. 发明授权

US08601214B1 System and method for write-back cache in sparse volumes 有权
标题翻译：在稀疏卷中回写缓存的系统和方法
公开(公告)号：US08601214B1
公开(公告)日：2013-12-03
申请号：US12986050
申请日：2011-01-06
申请人： Mardiros Z. Chakalian , Aswini S. Kumar , Darrell Suggs
发明人： Mardiros Z. Chakalian , Aswini S. Kumar , Darrell Suggs
IPC分类号： G06F12/00
CPC分类号： G06F17/30185 , G06F3/0659 , G06F3/067 , G06F12/0804 , G06F12/0873 , G06F17/30132 , G06F2212/264
摘要： The techniques introduced here provide for a write-back sparse volume cache in a storage system. The write-back sparse volume cache is implemented by a first storage server that is connected to communicate with a second storage server that hosts the origin storage volume. The first storage server receives a write request from a client to write data to the origin storage volume. In response to receiving the write request, the first storage server writes the data to the sparse volume cache maintained by the first storage server and acknowledges to the client a successful write operation. The data is maintained in the sparse volume cache such that the presence of the data in the sparse volume cache is transparent to the client and subsequent requests for the written data are serviced by the first storage server from the sparse volume cache. The data can later be flushed to the origin storage volume.
摘要翻译：这里介绍的技术提供了存储系统中的回写稀疏卷缓存。回写稀疏卷缓存由连接到与承载原始存储卷的第二存储服务器进行通信的第一存储服务器来实现。第一存储服务器从客户端接收写请求以将数据写入原始存储卷。响应于接收到写入请求，第一存储服务器将数据写入由第一存储服务器维护的稀疏卷缓存器，并向客户端确认成功的写操作。数据被维护在稀疏卷缓存中，使得稀疏卷缓存中的数据的存在对于客户端是透明的，并且对于写入的数据的后续请求由第一存储服务器从稀疏卷高速缓存服务。数据可以稍后刷新到原始存储卷。

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