公开(公告)号：US10423603B2

公开(公告)日：2019-09-24

申请号：US15187973

申请日：2016-06-21

申请人： Michael C Otto ,  Carl R Crandall ,  Forest F Crocker ,  Lnda J Brock ,  Douglas A Fuller ,  Michael J Rieschl

发明人： Michael C Otto ,  Carl R Crandall ,  Forest F Crocker ,  Lnda J Brock ,  Douglas A Fuller ,  Michael J Rieschl

IPC分类号： G06F9/52 ,  G06F16/23

摘要： A method includes determining, by a processor, whether a program check condition exists. The method further includes determining, by the processor, whether a lock descriptor of a lock in a file lock table satisfies an unlocking condition. The method further includes releasing, by the processor, the lock by setting the lock descriptor's host identifier as zero. The method further includes determining, by the processor, whether any lock in the file lock table satisfies a lock conflict condition. The method further includes determining, by the processor, whether the file lock table includes any lock descriptor that satisfies a locking condition. The method further includes creating, by the processor, a new lock using the lock descriptor that satisfies the locking condition.

公开(公告)号：US10824748B2

公开(公告)日：2020-11-03

申请号：US15933662

申请日：2018-03-23

申请人： Carl R Crandall ,  Robert M Malek ,  Ravi Kumar Rao ,  Souvik Das ,  Manish Ranjan Mahanta

发明人： Carl R Crandall ,  Robert M Malek ,  Ravi Kumar Rao ,  Souvik Das ,  Manish Ranjan Mahanta

IPC分类号： G06F16/17 ,  G06F21/62 ,  G06F9/50 ,  G06F16/11

摘要： A method and system for providing a plurality of host systems shared access to data files from a file server. The method includes monitoring a control file for updates, the control file located within a corresponding host directory located within the file server; receiving a request for access to a data file stored on the file server, the access request being written to the control file, the access request including a requested data file operation; performing the requested data file operation in response to the control file being updated with the access request; creating a status file in the host directory in which the requested data file operation was performed upon completion of the requested data file operation; writing status data in the status file, the status data including a result of the performance of the requested data file operation; and allowing access to the host directory in which the requested data file operation was performed in response to the status data being written to the status file.

公开(公告)号：US09594707B2

公开(公告)日：2017-03-14

申请号：US14474745

申请日：2014-09-02

申请人： Michael J Heideman ,  E. Brian Garrett ,  Steven M Wierdsma ,  Carl R Crandall

发明人： Michael J Heideman ,  E. Brian Garrett ,  Steven M Wierdsma ,  Carl R Crandall

IPC分类号： G06F13/28

CPC分类号： G06F13/28

摘要： Systems and methods for performing data input/output (I/O) operations using a computer network communications link are described. A method may include assigning a block of virtual addresses for usage with at least one computer network communications link. The method may also include registering the entire block of virtual addresses prior to an operating system partition performing I/O operations using the at least one computer network communications link, wherein registering comprises setting a plurality of virtual page frame numbers of the block of virtual addresses to point to distinct pages of physical memory. In some embodiments, one or more I/O operations may be performed using the at least one computer network communications link and the registered block of virtual addresses.

摘要翻译： 描述使用计算机网络通信链路执行数据输入/输出（I / O）操作的系统和方法。 方法可以包括为至少一个计算机网络通信链路分配用于使用的虚拟地址块。 该方法还可以包括在使用至少一个计算机网络通信链路执行I / O操作的操作系统分区之前注册整个虚拟地址块，其中注册包括设置虚拟地址块的多个虚拟页面帧号码 指向物理内存的不同页面。 在一些实施例中，可以使用至少一个计算机网络通信链路和注册的虚拟地址块来执行一个或多个I / O操作。