Please be informed about the following limitations that may apply when simultaneously executing multiple backup plans.
Multiple image-based backups cannot run simultaneously. On such occasions, only one of these plans is executed and the rest of the image-based plans are terminated with an error.
You should not expect any issues when running an image-based and file-level backup plan at the same time, or when simultaneously running a SQL Server and file-level backup.
However, multiple file-level backups should not be allowed to simultaneously process the same set of source data.
Moreover, we strongly recommend that you do not backup the same SQL Server database with different backup plans. It's required for the SQL backup chain consistency. Please consider selecting a hybrid backup option if you need to back up a database to multiple destinations at once.
Finally, please avoid performing a consistency check over a storage that serves as a destination for a currently running backup plan.