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Storage : Disks : Understanding disks : Considerations for using disks from a multi-disk carrier disk shelf in an aggregate
Considerations for using disks from a multi-disk carrier disk shelf in an aggregate
Observing the requirements and best practices for using disks from a multi-disk carrier disk shelf in an aggregate enables you to maximize storage redundancy and minimize the impact of disk failures.
Disks in multi-disk carriers always have the Data ONTAP disk type of MSATA. MSATA disks cannot be mixed with HDDs from a single-carrier disk shelf in the same aggregate.
The following disk layout requirements apply when you are creating or increasing the size of an aggregate composed of MSATA disks:
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Data ONTAP prevents you from putting two disks in the same carrier into the same RAID group.
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Do not put two disks in the same carrier into different pools, even if the shelf is supplying disks to both pools.
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Do not assign disks in the same carrier to different nodes.

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