Microsoft has announced today the general availability of incremental snapshots of Azure Managed Disks. Incremental snapshots are a cost-effective, point-in-time backup of managed disks.
Unlike current snapshots, which are billed for the full size, incremental snapshots are billed for the delta changes to disks since the last snapshot and are always stored on the most cost-effective storage, Standard HDD storage irrespective of the storage type of the parent disks. For additional reliability, incremental snapshots are stored on Zone Redundant Storage (ZRS) by default in regions that support ZRS.
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