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ION_Network database doesn’t upgrade throwing an “Insufficient Disk Space” error

Issue:
During a side-by-side database upgrade, ION_Network upgrade will fail immediately with an error stating "insufficient disk space. All drives will have sufficient space.

Product Line:
Power Monitoring Expert 7.2.x

Environment:
Power Monitoring Expert Software Side-by-Side Upgrade

Cause:
There are three causes for this to happen:
1. There is indeed insufficient disk space on the drives where the ION_Network database and tempdb is located
2. The "Utilities.SQLServer.dll" file is not located in the Power Monitoring Expert/system/bin folder as outlined in the side-by-side upgrade procedure outlined in FA210482.
3. There is an 'extra' SchedulerTick table associated with a schema called ION that was failing the upgrade right at the beginning.

Resolution:
To resolve the causes perform the following resolutions respectively.
1. Increase the amount of available space on the drives where the ION_Network and tempdb databases are located.
2. Transfer the "Utilities.SQLServer.dll" file attached in FA210482 to the Power Monitoring Expert/system/bin folder.
3. Run this SQL command on the ION_Network database in SQL Server Management Studio:
DROP TABLE [ION_Network].[dbo].[SchedulerTick]