NetApp
Storage : Disks : Understanding disks : Aggregate requirements for disks from multi-disk carrier disk shelves
Aggregate requirements for disks from multi-disk carrier disk shelves
Aggregates composed of disks from multi-disk carrier disk shelves must conform to some configuration requirements.
The following configuration requirements apply to aggregates composed of disks from multi-disk carrier disk shelves:
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The RAID type must be RAID-DP.
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The format must be 64-bit.
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All HDDs in the aggregate must be the same Data ONTAP disk type.
The aggregate can be a Flash Pool.
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If the aggregate is mirrored, both plexes must have the same Data ONTAP disk type (or types, in the case of a Flash Pool).
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The aggregate cannot be a traditional volume.

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