Use the following process to migrate the primary storage from HDD to Azure.
Download and set up azcopy tool to linux system to which HDD is connected. See Get started with AzCopy.
Copy all the media files from NAS to Azure Blob use command./azcopy copy "/additional-hdd#1/*" ". Add your container name and SAS token to the web address for the path to work.https://byosstorage123.blob.core.windows.net/mycontainer?<SAS-Token>. For more details, see Upload files to Azure Blob storage by using AzCopy
After migrating, you must configure the new storage settings to access the recordings. See Configuring Media Manager.