发明授权
US08954673B1 Using a conditional read request and a hash to determine synchronization of data in a cache at a host with data in storage array
有权
使用条件读取请求和散列来确定主机中缓存中数据与存储阵列中数据的同步
- 专利标题： Using a conditional read request and a hash to determine synchronization of data in a cache at a host with data in storage array
- 专利标题（中）： 使用条件读取请求和散列来确定主机中缓存中数据与存储阵列中数据的同步
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申请号： US13424402申请日： 2012-03-20
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公开(公告)号： US08954673B1公开(公告)日： 2015-02-10
- 发明人: Assaf Natanzon , Zvi Gabriel BenHanokh , Felix Shvaiger
- 申请人： Assaf Natanzon , Zvi Gabriel BenHanokh , Felix Shvaiger
- 申请人地址： BM Hamilton
- 专利权人： EMC International Company
- 当前专利权人： EMC International Company
- 当前专利权人地址： BM Hamilton
- 代理机构： Daly, Crowley, Mofford & Durkee, LLP
- 主分类号： G06F13/00
- IPC分类号： G06F13/00
摘要：
In one aspect, a method includes sending a conditional read request from a host to a storage array requesting data in a data block stored at the storage array. The conditional read request includes a first hash of data in the data block at the host. The method also includes determining a second hash of the data in the data block stored at the storage array, comparing the first hash and the second hash, sending a reply from the storage array to the host with the data in the data block stored at the storage array if the first hash and the second hash differ and sending a reply from the storage array to the host without the data in the data block stored at the storage array if the first hash and the second hash are the same.
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