18 Comparing how Data ONTAP functions work with disks and array LUNsRAID group size Maximum and default RAIDgroup sizes vary according to thegateway model and the level ofRAID group protection providedby either RAID-DP or RAID4.See the Data ONTAP StorageManagement Guide for moreinformation.Maximum and default RAIDgroup sizes vary according to theversion of Data ONTAPsoftware. See the gatewayInteroperability Matrix for moreinformation.redundant connections to storage You can use either one or twoloops to a native disk. You mustuse two loops for redundancy. Ifyou want redundant loops for anHA pair, you must use theMultipath Storage feature.You must configure redundantpaths to an array LUN.root volume The root volume can be installed either on a native disk or an arrayLUN. See “Considerations when planning for the root volume” onpage 24 for more details.SnapLock Compliance Only aggregates created fromstorage on native disk shelvessupport SnapLock Compliance.SnapLock Compliance is notsupported in all releases. See thegateway Interoperability Matrixfor more information.Not supported for array LUNs.SnapMover You can move aggregates andvolumes composed of nativedisks only between the nodes ofthe HA pair.You can move aggregates andvolumes composed of arrayLUNs between any of thegateways in the neighborhood.See the gateway InteroperabilityMatrix to determine whichversions of Data ONTAPsupport SnapMover.Data ONTAP feature orfunction Native disk shelves Array LUNs
