Niko Neugebauer 5/26/2020

SQL Server Backup Throttling in Azure VMs (and in other virtualised environments)

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This technical article details the unexpected problem of SQL Server backup throttling in Azure VMs and other virtualized environments. It explains how VM disk throughput limits can be far lower than the combined throughput of attached disks, causing backups to saturate IO and lead to severe operational issues like transaction rollbacks and Availability Group failovers. The author uses a specific Azure VM and disk configuration to illustrate the performance bottleneck.

SQL Server Backup Throttling in Azure VMs (and in other virtualised environments)

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