System Failure Recovery; Recovery From Operating System Disk Failure; Recovery From Database Disk Failure - ABB 800xA User Manual

Section 5 Maintenance and Administration
The Daily Backup is run automatically by the History Server Scheduler Service at
specific time (default is 21:30 Hrs).
The Daily Backup is incremental, i.e., only last day data is updated or last two tables
from previous day are updated in the database.
It is recommended that the user keeps a separate copy of this backup on weekly or
monthly basis.

System Failure Recovery

This section provides the recovery steps in case of Hard Disk Failure of Database or
Operating System disks.

Recovery from Operating System Disk Failure

This section provides steps in case of Operating System Disk failure(i.e., Disk got
corrupted or Disk crashed or some other reason that Database disk is not working).
The following steps are same for History Embedded Data Collector node or History
Server Node:
1.
2.
3.

Recovery from Database Disk Failure

Execute the applicable procedures in the appropriate node as follows in case of
database disk failure.
2PAA107563-600 B
Replace the old disk (which is corrupted/crashed) with new disk.
Restore the Backup of the Operating system on the new disk only.
Restart the system.
It may take some time for the Database to initialize and return to normal
running state. To verify that the database is returned to normal running state
open Windows Task Manager (Start > Run > Taskmgr.msc) and check for the
process RTDB_Scandb.exe. This process verifies the states of all the tables in
Database and if there are any problem, it fixes the tables automatically. Once
this process is exited from Task Manager, the Database comes into Normal
Running State. This completes the recovery of Node from Operating System
Disk Failure.
System Failure Recovery
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