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Introduction to 64-bit and 32-bit aggregate formats

Aggregates are either 64-bit or 32-bit format. 64-bit aggregates have much larger size limits than 32-bit aggregates. 64-bit and 32-bit aggregates can coexist on the same storage system or cluster.

32-bit aggregates have a maximum size of 16 TB; 64-bit aggregates' maximum size depends on the storage system model. For the maximum 64-bit aggregate size of your storage system model, see the Hardware Universe at hwu.netapp.com.

When you create a new aggregate, it is a 64-bit format aggregate.

You can expand 32-bit aggregates to 64-bit aggregates by increasing their size beyond 16 TB. 64-bit aggregates, including aggregates that were previously expanded, cannot be converted to 32-bit aggregates.

You can see whether an aggregate is a 32-bit aggregate or a 64-bit aggregate by using the storage aggregate show -fields block-type command.