公开(公告)号：US20060212746A1

公开(公告)日：2006-09-21

申请号：US11085898

申请日：2005-03-21

申请人： Augustine Amegadzie ,  James Compton ,  Jerald Gross ,  Stephen Rago ,  Christopher Stacey ,  Eyal Zimran

发明人： Augustine Amegadzie ,  James Compton ,  Jerald Gross ,  Stephen Rago ,  Christopher Stacey ,  Eyal Zimran

IPC分类号： G06F11/00

CPC分类号： G06F17/30221

摘要： A hierarchical storage system is constructed from file servers and a policy engine server by building upon a file migration service. Offline attributes are added to file system inodes in a primary file server, file system parameters are added in the primary server, an offline read access method field is added to a connection database, and the primary file server is programmed to use these attributes and parameters for selecting a particular method (such as a partial read migration or a pass through read method) for read access to an offline file. In this fashion, the primary file server is provided with flexibility for selecting a particular one of a number of migration methods depending on various conditions, in order to improve the trade-off between the cost of storage and delay in file access.

摘要翻译： 通过构建文件迁移服务，从文件服务器和策略引擎服务器构建分层存储系统。 离线属性被添加到主文件服务器中的文件系统inode中，文件系统参数被添加到主服务器中，将离线读取访问方法字段添加到连接数据库，并且主文件服务器被编程为使用这些属性和参数 用于选择特定方法（例如部分读取迁移或通过读取方法）以读取对脱机文件的访问。 以这种方式，主文件服务器具有根据各种条件选择多个迁移方法中的特定一个的灵活性，以便改善存储成本与文件访问延迟之间的权衡。