Rules for mixing array LUNs in an aggregate

Data ONTAP does not support mixing different types of storage in the same aggregate because it causes performance degradation.

There are restrictions on the types of array LUNs that you can mix in the same aggregate, which you must observe when you add array LUNs to an aggregate. Data ONTAP does not prevent you from mixing different types of array LUNs.

Note: Data ONTAP prevents you from mixing native disks and array LUNs in the same aggregate.

For aggregates for third-party storage, you cannot mix the following storage types in the same aggregate:

•	Array LUNs from storage arrays from different vendors

•	Array LUNs from storage arrays from the same vendor but from different storage array families

Note: Storage arrays in the same family share the same characteristics---for example, the same performance characteristics. See the V-Series implementation guide for your vendor for information about how Data ONTAP defines family members for the vendor.

•	Array LUNs from storage arrays with 4-Gb HBAs and array LUNs from storage arrays with 2-Gb HBAs

•	Array LUNs from Fibre Channel and SATA drives

You can deploy Fibre Channel and SATA drives behind the same V-Series system. However, you cannot mix array LUNs from SATA disks and Fibre Channel disks in the same aggregate, even if they are from the same series and the same vendor. Before setting up this type of configuration, consult your authorized reseller to plan the best implementation for your environment.