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1. 发明授权

US5675781A Augmenting volume management of information storage devices to handle direct access to storage devices 失效
标题翻译：扩展信息存储设备的卷管理，以便直接访问存储设备
公开(公告)号：US5675781A
公开(公告)日：1997-10-07
申请号：US498996
申请日：1995-07-06
申请人： William L. Duncan , Howard Alt
发明人： William L. Duncan , Howard Alt
IPC分类号： G06F3/06 , G06F12/00 , G06F13/36
CPC分类号： G06F3/0601 , G06F2003/0697 , Y10S707/99938
摘要： A computing system operates a volume management system to manage accesses to the storage of information and provides to the users of the volume management system parallel process paths for accessing a storage device is as an access volume operation or as an access device operation. Further the volume management system prevents the two parallel logical operations from conflicting with each other by performing an open volume operation and an open device operation. These operations indirectly communicate by setting and clearing characteristics in stored volume data characteristics that they share for each device being accessed. The characteristics include an open count to track the open status of a device and an exclusive flag to track whether the storage device has been opened exclusively by either the open volume or the open device operation request from a user.
摘要翻译：计算系统操作卷管理系统以管理对信息存储的访问，并向卷管理系统的用户提供用于访问存储设备的并行进程路径作为访问卷操作或作为访问设备操作。此外，卷管理系统通过执行开放卷操作和打开的设备操作来防止两个并行逻辑操作相互冲突。这些操作间接地通过设置和清除它们为被访问的每个设备共享的存储的卷数据特性中的特性进行通信。这些特征包括用于跟踪设备的打开状态的开放计数和用于跟踪存储设备是否已经由用户的打开卷或打开的设备操作请求专门地打开的独占标志。

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