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When the master or back-up master recovers from a breakdown, the recovery declaration operation should
be taken to inform satellites of the recovery.
(1) When the master recovers from a breakdown – Recovery declaration
at the back-up master
Flow of a recovery declaration at the back-up master
1) The recovery declaration operation is done at the back-up master.
2) Each satellite stops sending updated GLU data (and clerk data*) to the back-up master
temporarily.
3) The back-up master sends the updated GLU data (and clerk data*) files to the master.
4) The back-up master informs all satellites of the master's recovery.
5) The satellites restart sending updated GLU data (and clerk data*) to the master and the IRC
system returns to the normal state.
*Only for the centralized clerk file system
The recovery declaration procedure is as follows:
1. Enter the PGM2 mode from the mode selection window.
2. Select “7 DECLARE & RECOVERY MA/BMA” from the displayed menu.
The DECLARE & RECOVERY MA/BMA window will appear.
3. Select “2 SYNCHRONIZE DB MA/BMA.”
3) Updated data file
Satellite
4) Master
recovery
information
2)
Transmission stops temporarily.
Recovery declaration
1) Recovery
declaration
operation
Back-up master
Master
5) Restart of updated
data transmission
3. Recovery declaration