You use the HTTP HEAD method to list account metadata. You need an account to request this operation.
The target of a request to list the account metadata is a tenant (that is, the service point). When you list account metadata, you are returned information about the total number of containers on that account, the number of objects in the account, and the total amount of bytes used.
The total number of containers is calculated in the context of that tenant and even incorporates containers that don't have the HSwift API enabled. The object count is calculated in the same manner.
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