Which storage account type is required to use Azure Files premium (SSD-backed) file shares?
A.Standard general-purpose v2
GPv2 supports Azure Files but only standard (HDD) tier.
B.FileStorage (premium file shares) account
FileStorage is the premium files account kind. Correct.
C.BlockBlobStorage premium account
BlockBlobStorage is premium BLOCK BLOBS, not file shares.
D.Any account with ZRS replication
Replication choice is independent of performance tier.
Why this answer
Premium file shares require a FileStorage account kind. The account-kind ↔ capability mapping: general-purpose v2 = everything standard; BlockBlobStorage = premium block blobs; FileStorage = premium files; BlobStorage = legacy blob-only.
Correct answer: B · Last reviewed 2026-02-14
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