发明名称 |
FAULT TOLERANT NETWORKING ARCHITECTURE |
摘要 |
A fault tolerant network for a plurality of computers includes a system for controlling access to shared peripherals. Access to the shared peripherals is coordinated among the computers by means of communication through a semaphore box. Each computer connects to the semaphore box via a channel. The semaphore box is comprised of two major sections: a semaphore section and an I/O section. The semaphore section contains two sets of semaphores: a first set comprising reservation semaphores for the shared peripherals; and a second set comprising heartbeat semaphores for the sharing computers. The first set is used to reserve a particular peripheral for a particular computer and indicate the source of the reservation; the second set provides a "heartbeat" to prevent reservation semaphores from being set indefinitely in the event communication with a particular computer is lost.
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申请公布号 |
US5206952(A) |
申请公布日期 |
1993.04.27 |
申请号 |
US19900582507 |
申请日期 |
1990.09.12 |
申请人 |
CRAY RESEARCH, INC. |
发明人 |
SUNDET, JAMES W.;BROWN, ROGER G. |
分类号 |
G06F11/18;G06F15/167 |
主分类号 |
G06F11/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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