Pre-configured job scheduler (jsh) records
- Last UpdatedApr 24, 2025
- 1 minute read
A number of pre-configured job scheduler (jsh) records exist on your system that should not be deleted.
A number of pre-configured jsh records exist on your system. These contain the warning "Do not Delete" or "System Use Only - Do not Delete" in the Description field. AVEVA has installed these to perform system operations. Pre-configured records that may exist on your system are listed in the table below.
|
Record Name |
Description |
|---|---|
|
SaveDB, SaveDayDB, Save WeekDB |
These records periodically back up the RealTime database (RTDB) to the save.dat file. |
|
archive |
This record periodically archives Historical data. |
|
cleanup |
This record purges Historical data that are no longer needed. |
|
ALMSUMpurge |
This record purges the Alarm Summary of acknowledged alarms when their configured time to remain in the summary after acknowledgement has expired. |
Other pre-configured records that perform specific time-based functions may also exist on your system.
Caution: These pre-configured records should not be deleted. Generally, they should not even
be modified. Although you may need to change the execution times, many jobs must be
executed at specific times. Other jobs, such as archiving, are run during quiet evening
periods to prevent interference with normal operations. Make sure that all of the
system conditions and program requirements are known before making any changes.
Note: If you are configuring a Single Historical scenario, you must delete the jsh records as they cannot appear in every system.
For more information on configuring a Single Historical scenario, refer to the Historical Administrator documentation.