公开(公告)号：US5857074A

公开(公告)日：1999-01-05

申请号：US695827

申请日：1996-08-16

Applicant: Derrick W. Johnson

Inventor： Derrick W. Johnson

IPC: G06F13/00 ,  G06F11/273 ,  G06F11/34 ,  H04L29/06

CPC classification number: G06F11/2294 ,  G06F11/0709 ,  G06F11/0748 ,  H04L29/06 ,  H04L69/18

Abstract: A communication system is presented whereby sequences of video screens sent from a host CPU to a video controller can be stored and subsequently retrieved by a terminal located remote from the host CPU. The host CPU and video controller form part of a server arranged within a distributed computing system. An administrator situated at the remote terminal can retrieve select video screens produced during server operations to determine information regarding the server configuration and possible causes of server failure or future failure. The sequence of video screens thereby represent video screen changes stored upon a server controller adapted for coupling to the server expansion bus. The video screen changes represent a sequence of video screen changes occurring prior to server failure or after server reset. Those changes provide beneficial information to an administrator located remote from the server, and allows the administrator to communicate with the server using several possible communication protocols. The server controller snoops display data written from the host CPU to the video controller and mirrors the display data upon buffers within the server controller. Information within the buffers can be called upon by a remotely situated administrator regardless of whether server power is lost in the interim.

Abstract translation: 提供了一种通信系统，其中从主机CPU发送到视频控制器的视频屏幕序列可以被存储并且随后由位于远离主机CPU的终端检索。 主机CPU和视频控制器构成分布式计算系统中安排的服务器的一部分。 位于远程终端的管理员可以检索在服务器操作期间产生的选择视频屏幕，以确定有关服务器配置的信息以及服务器故障或将来故障的可能原因。 因此，视频屏幕的顺序表示存储在适于耦合到服务器扩展总线的服务器控制器上的视频屏幕改变。 视频屏幕更改表示在服务器故障之前或服务器重置后发生的视频屏幕更改的序列。 这些更改为位于远离服务器的管理员提供有益的信息，并允许管理员使用几种可能的通信协议与服务器进行通信。 服务器控制器将从主机CPU写入的数据显示给视频控制器，并在服务器控制器中的缓冲区上镜像显示数据。 缓冲区内的信息可由远程管理员调用，无论是否在过渡期间服务器功耗丢失。