You must meet specific requirements when configuring storage arrays to work with ONTAP systems that use array LUNs. These requirements include setting configuration parameters on your storage arrays and deploying only supported configurations.
Caution about using the VCMDB LUN
For the VCMDB (Volume Configuration Management Database) to be enabled, the VCMDB LUN must exist. The VCMDB LUN is a command type LUN, not a storage LUN. The VCMDB is typically mapped to LUN 0, but can be mapped to an array LUN other than LUN 0.
Caution about using the ACLX LUN
On VMAX arrays, the ACLX (Access Control Logix) LUN is created during initialization if the customer requests that ACLX be used. The ACLX LUN is not a storage LUN, so it should not be mapped to ONTAP.
Restriction on using gatekeeper LUNs
If a gatekeeper logical device (LUN) is presented, you must not map it to the ONTAP system. ONTAP systems cannot use gatekeeper LUNs. A gatekeeper LUN is a Symmetrix logical device through which SYMAPI or the ControlCenter agent communicates with the storage array.
EMC Symmetrix storage array families ONTAP does not support mixing some types of storage in aggregates. To help you determine the array LUNs that can be mixed in an aggregate, the storage arrays from each vendor are grouped into families. When you create aggregates, you cannot mix array LUNs from different vendors and from different storage array families in the same aggregate.