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本文介绍了基于ＤＥＣｎｅｔ，在ＶＡＸ／ＶＭＳ下开发的为保证系统安全可靠运行的一种冗余结构的ＶＡＸ双机备用系统，此系统由双机互裁软件实现，不需专用硬件设备，可实现双机手动、自动切换，可靠性强。
This paper introduces a redundant VAX dual standby system based on DECnet and developed under VAX / VMS to ensure the safe and reliable operation of the system. This system is implemented by double-machine arbitration software and does not need special hardware devices to realize Double manual, automatic switching, reliability.