As you know you have 3 different access tiers available for storage account – hot, cool, archive – you have to define based on the access type (frequency) to the data stored in storage account.
Well, a fourth new one is now available in preview: Cold.
NOTE during the preview this new tier is currently accessible only in the following region:
- Canada Central
- Canada East
- France Central
- Korea Central
The Cold access tier is positioned between cool and archive, with 90-day early deletion policy.
To join the preview you first need to register here to the preview https://forms.office.com/r/788B1gr3Nq (IMPORTANT only 1 subscription to be registered)
Once you received the confirmation you will need to register the ColdTier resource provider before you will be able to enable it on a storage account.
The resource provider registration will be done either from the Preview features blade from the portal or with the below PowerShell or Cli commands
- PowerShell: Get-AzProviderFeature -ProviderNamespace Microsoft.Storage -FeatureName ColdTier
- Azure Cli: az feature show –namespace Microsoft.Storage –name ColdTier
Limitations and known issues
- The change feed is not yet compatible with the cold tier
- Point in time restore is not yet compatible with the cold tier
- Object replication is not yet compatible with the cold tier
- The default access tier setting of the account can’t be set to cold tier
- blobs can’t be set to the cold tier by using AzCopy. During the preview, you can set the blob’s tier to the cold tier by using the Azure portal, PowerShell, or the Azure CLI.