140CHS11000 热备单元的存在可以优化系统的性能

Description

140CHS11000 热备单元的存在可以优化系统的性能

140CHS11000热备单元的功能主要包括以下几点：

保持与两台自律机间的通讯：热备单元需要与两台自律机进行通讯，以确定哪一台为主机，哪一台为备机。

裁决两台自律机中哪一个为主机，哪一个为备机：当一台自律机出现故障时，热备单元需要自动判断并选择另一台自律机作为主机，以保证系统的正常运行。

自动切换主备机：当主控单元出现故障时，备用主控单元会自动承担主控单元的控制任务，使整个系统不会发生停顿。

控制整个终端设备的运行：热备处理单元由主控芯片、锁存器、随机存储器、单向隔离的高速模拟开关、RS-232驱动芯片、非门电路构成，能够控制整个终端设备的运行。

实现多任务控制：多个不同程序可同时运行，实现多任务控制。

热备单元在系统中的作用主要体现在以下几个方面：

提高系统可靠性：热备单元的存在使得系统在主控单元出现故障时，能够自动切换到备用主控单元，保证系统的连续运行，提高了系统的可靠性。

保证数据完整性：在系统运行过程中，热备单元可以实时备份数据，并在必要时恢复数据，从而保证了数据的完整性。

实现无缝切换：热备单元可以实现主备机之间的无缝切换，即在主控单元出现故障时，备用主控单元能够快速接管控制任务，保证系统的连续运行。

优化系统性能：热备单元的存在可以优化系统的性能，因为备用主控单元可以在主控单元出现故障时迅速接管控制任务，避免了因主控单元故障导致的系统停顿或延迟。

简化维护和管理：热备单元的使用简化了系统的维护和管理，因为备用主控单元的存在使得系统的维护更加方便快捷。

综上所述，140CHS11000热备单元在系统中起着提高可靠性、保证数据完整性、实现无缝切换、优化系统性能和简化维护和管理的作用。

140CHS11000 热备单元的存在可以优化系统的性能

The 140CHS11000 hot spare unit provides the following functions:

Communicate with the two SAS: The hot spare unit communicates with the two SAS to determine which one is the host and which is the standby.

Determine which of the two autonomous machines is the host and which is the standby one: When one autonomous machine is faulty, the hot spare unit automatically determines and selects the other autonomous machine as the host to ensure normal system running.

Automatic switchover: When the main control unit fails, the secondary main control unit automatically takes over the control tasks of the main control unit so that the entire system does not stop.

Control the operation of the entire terminal equipment: the hot spare processing unit is composed of the main control chip, the latch, the random access memory, the unidirectional isolated high-speed analog switch, the RS-232 driver chip, and the non-gate circuit, which can control the operation of the entire terminal equipment.

Multi-task control: Multiple different programs can be run at the same time to achieve multi-task control.

The functions of hot spare units in the system are mainly reflected in the following aspects:

Improved system reliability: The hot spare unit enables the system to automatically switch to the standby main control unit when the main control unit fails, ensuring continuous system running and improving system reliability.

Ensure data integrity: During the system running, the hot spare unit can back up data in real time and restore data when necessary to ensure data integrity.

Seamless switchover: The hot spare unit seamlessly switches between the active and standby servers. That is, when the main control unit fails, the standby main control unit quickly takes over control tasks to ensure continuous system running.

Optimize system performance: The presence of a hot spare unit can optimize system performance because the standby MPU can quickly take over control tasks in the event of a MPU failure, avoiding system pauses or delays caused by a MPU failure.

Simplified maintenance and management: The use of the hot spare unit simplifies the maintenance and management of the system, because the existence of the standby master control unit makes the maintenance of the system more convenient and fast.

In summary, the 140CHS11000 hot spare unit plays a role in improving reliability, ensuring data integrity, realizing seamless switching, optimizing system performance, and simplifying maintenance and management.