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How to improve azcopy performance so that it doesn’t clash with other processes?

I manage a server running Ubuntu, which serves as the main backup server with Bacula configured to manage backups for various hosts. Additionally, after each MySQL backup, AzCopy is used to transfer MySQL dumps and InnoDB files to Azure Blob Storage. The command used includes a limitation on the network bandwidth (–cap-mbps 500) because the server’s maximum bandwidth is 1 Gbps (this cannot be changed). This limit was necessary as AzCopy operations previously made the server unresponsive.