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【速搜问答】热备是什么

问答 admin 4个月前 (08-01) 83次浏览 已收录 0个评论

汉英对照:
Chinese-English Translation:

热备是指与目标设备共同运转,当目标设备发生故障或停机时,热备设备立即承担起故障设备的工作任务。冷备是指当目标设备发生故障或停机后,冷备设备才开始由停机等待状态进入启动运转状态,并承担起故障设备的工作任务。

Hot standby refers to the operation with the target equipment. When the target equipment fails or stops, the hot standby equipment immediately takes on the task of the failed equipment. Cold standby means that when the target equipment fails or stops, the cold standby equipment starts to enter the start-up state from the shutdown waiting state, and undertakes the work task of the fault equipment.

热备是指与目标设备共同运转,当目标设备发生故障或停机时,热备设备立即承担起故障设备的工作任务。冷备是指当目标设备发生故障或停机后,冷备设备才开始由停机等待状态进入启动运转状态,并承担起故障设备的工作任务。

Hot standby refers to the operation with the target equipment. When the target equipment fails or stops, the hot standby equipment immediately takes on the task of the failed equipment. Cold standby means that when the target equipment fails or stops, the cold standby equipment starts to enter the start-up state from the shutdown waiting state, and undertakes the work task of the fault equipment.

热备从广义上讲,就是服务器高可用应用的另一种说法,从狭义上讲,双机热备特指基于高可用系统中的两台服务器的热备。

In a broad sense, hot standby is another way of saying server high availability applications. In a narrow sense, dual machine hot standby refers to the hot standby based on two servers in a high availability system.

从广义上讲,就是服务器高可用应用的另一种说法,英译为:high available,而我们通常所说的热备是根据意译而来,同属于高可用范畴,而双机热备只限定了高可用中的两台服务器。热备软件是用来解决一种不可避免的计划和非计划系统宕机问题的软件解决方案,当然也有硬件的。是构筑高可用集群系统的基础软件,对于任何导致系统宕机或服务中断的故障,都会触发软件流程来进行错误判定、故障隔离、以及通地联机恢复来继续执行被中断的服务。在这个过程中,用户只需要经受一定程度可接受的时延,而能够在最短的时间内恢复服务。

In a broad sense, it is another term for server high availability applications, which is translated into English as “high available”. What we usually call hot standby is based on free translation and belongs to the category of high availability, while the dual machine hot standby only limits two servers in high availability. Hot standby software is a software solution to solve the inevitable planned and unplanned system downtime problem. Of course, there are also hardware. It is the basic software for building high availability cluster system. For any fault that causes system downtime or service interruption, software flow will be triggered to make error judgment, fault isolation, and online recovery through ground to continue the interrupted service. In this process, users only need to endure a certain degree of acceptable delay, and can resume service in the shortest time.

从狭义上讲,双机热备特指基于高可用系统中的两台服务器的热备(或高可用),因两机高可用在国内使用较多,故得名双机热备,双机高可用按工作中的切换方式分为:主-备方式(Active-Standby 方式)和双主机方式(Active-Active 方式),主-备方式即指的是一台服务器处于某种业务的激活状态(即 Active 状态),另一台服务器处于该业务的备用状态(即 Standby 状态)。而双主机方式即指两种不同业务分别在两台服务器上互为主备状态(即 Active-Standby 和 Standby-Active 状态)。

In a narrow sense, dual machine hot standby refers to the hot standby (or high availability) based on two servers in a high availability system. Because two machine high availability is widely used in China, it is named dual machine hot standby. According to the switching mode in work, dual machine high availability can be divided into active standby mode and active active active mode The main standby mode refers to that one server is in the active state of a certain service, and the other server is in the standby state of the service. The dual host mode means that two different services are in the primary and standby state on two servers respectively (i.e. active standby and standby active state).


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