System for storing display data during first time period prior to failure of computer and during second time period after reset of the computer

A server controller, comprising:

• detection logic adapted for coupling to a server to determine the presence of display data forwarded from the server;
• a controller memory coupled to said detection logic, wherein said controller memory comprises a local frame buffer and a current reset sequence buffer;
• and
• said local frame buffer is configured to store a current display screen of said display data, and said current reset sequence buffer is configured to store a change between the current display screen of said display data and a previous display screen of said display data during a time period after which said server receives a first reset.

A server controller, comprising:

• detection logic adapted for coupling to a server to determine the presence of display data forwarded from the server;
• a controller memory coupled to said detection logic, wherein said controller memory comprises a local frame buffer and a current sequence buffer;
• and
• said local frame buffer is configured to store a current display screen of said display data, and said current sequence buffer is configured to store a change between the current display screen of said display data and a previous display screen of said display data during a time period before which said server fails.

A method for accessing a sequence of display screens forwarded from a server to a video controller, comprising:

• loading into a local frame buffer a current display screen of display data forwarded from the server to the video controller;
• comparing the current display screen of display data to a previous display screen of display data previously loaded into said local frame buffer to produce a screen change packet;
• repeating the steps of loading and comparing for a sequence of display screens compiled as a plurality of screen change packets which occur during a first time period immediately prior to failure of said server and during a second time period immediately after reset of said server;
• and
• assessing said plurality of screen change packets by a terminal located remote from said server to display upon the terminal said sequence of display screens.