A General Purpose storage account is required for taking backups to Azure Cloud. We make use of this type of account due to the fact that general purpose account is the most cost effective.

Obviously cold blob storage accounts cost less than general purpose accounts for holding storage, however it is costlier when handling a lot of requests. Since VM Backup needs to request a lot of data during the backup operation it turns out that a General Purpose account is actually much more cost effective than using cold blob storage.

A General Purpose storage account is required for taking backups to Azure Cloud. We make use of this type of account due to the fact that general purpose account offers the use of (i)tables - which is something we need and (ii)costs.

Obviously cold blob storage accounts cost less than general purpose accounts for holding storage, however it is costlier when handling a lot of requests. Since VM Backup needs to request a lot of data during the backup operation it turns out that a General Purpose account is actually much more cost effective than using cold blob storage.