The difference between Permanent and Burst storage
You will find these storage types in connection to Cloud Backup for Veeam.
Permanent Storage
Permanent storage is what you contractually request (1 TB/month minimum). It is always at your disposal and it cannot be modified as swiftly as Burst storage. (Permanent storage is associated to a contractual obligation.)
Burst storage
This type of storage can be added swiftly and removed on demand. For an additional charge, it can be acquired on a monthly basis making it the best solution when you need more backup storage as quickly as possible.