Sql server 2016 split url backup into multiple files



  • I have a database backing up into an Azure page blob via URL backups set up from SSMS. I am trying to find out how to split the backup into smaller chunks. I have a 2 TB database that is now backing up in to one large file, I want to separate it into 4 smaller files. Any hints would be helpful.

    Environment Summary: Azure VM with SQL 2016 Enterprise Backup Method: URL Backup to Azure Page Blob Security Involved: Key Vault and Credentials Current Status: Backups working Desired Status: Large Backups split into multiple files

    I am ok with a powershell example. Thank you



  • you should split it into multiple url in this way:

    BACKUP DATABASE mydb
    TO URL = 'https://mystorage.blob.core.windows.net/mycontainer/mydbBackupSetNumber2_0.bak',
    URL = 'https://mystorage.blob.core.windows.net/mycontainer/mydbBackupSetNumber2_1.bak',
    URL = 'https://mystorage.blob.core.windows.net/mycontainer/mydbBackupSetNumber2_2.bak'
    WITH COMPRESSION, MAXTRANSFERSIZE = 4194304, BLOCKSIZE = 65536;  
    

    ref: https://docs.microsoft.com/en-us/archive/blogs/sqlcat/backing-up-a-vldb-to-azure-blob-storage




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