Question(s) and Answer(s)
Can different shelves and IOM modules be mixed in the same stack in a MetroCluster?
Each SAS port in an ATTO 7500N or 7600N FibreBridge is considered a seperate stack.
IOM12 and IOM6 can not be mixed in the same stack. They can however be mixed using different SAS ports in the same ATTO FibreBridge.
MetroCluster supports a mix of supported shelves in a single storage stack. The shelf models currently allowed to be mixed in a stack are DS2246, DS4243, and DS4246, with only one transition between IOM3 and IOM6. (Check in Hardware Universe for supported modules in an ONTAP release).
For more information, see note 7146 in the Interoperability Matrix Tool (IMT)