NS0-162 Exam Dumps : NetApp Certified Data Administrator (ONTAP)

The point-to-point topology is the simplest and most common way to connect a single host to a storage system using FC. It allows direct communication between two devices without any intermediate devices. The UTA2 ports on the AFF A220 cluster support the point-to-point topology when configured as FC ports. Therefore, to connect a single Windows host directly to the storage using FC, you need to use the point-to-point topology on all ports and make sure that the host and the storage have compatible FC settings, such as speed, WWPN, and zoning. The other options are not correct because they involve additional devices or topologies that are not necessary or supported for this scenario. References :- Quick guide - AFF A220, Detailed guide - AFF A220, ONTAP 9 SAN Configuration Guide

 To make the destination NAS volume writable, you need to break the SnapMirror relationship using the snapmirror break command from the destination cluster, and then use the volume mount command to mount the NAS volume in the NFS namespace. Breaking the SnapMirror relationship will make the destination volume read/write and allow clients to access the latest Snapshot copy. Mounting the volume in the NFS namespace will make the volume visible to the clients and enable them to access the data. The other options are not correct because:

• Deleting the SnapMirror relationship from the destination cluster will not make the destination volume writable, but rather remove the relationship configuration and history. This will prevent future resynchronization or updates of the relationship.
• Breaking the SnapMirror relationship using the snapmirror break command from the source cluster will not work, because the source cluster is unavailable due to networking issues. The command must be run from the destination cluster. References :- Break the SnapMirror relationship, Mount a volume in the namespace

The space allocation option is a LUN attribute that enables the host to communicate with the storage system about the blocks that are no longer in use by the host file system. When the space allocation option is enabled, the host sends SCSI UNMAP commands to the storage system when files are deleted on the disk. The storage system then reclaims the space from the thin-provisioned LUN and makes it available for other LUNs or volumes. This process is also known as space reclamation or hole punching. If the space allocation option is disabled, the host does not send SCSI UNMAP commands and the storage system does not reclaim the space from the thin-provisioned LUN, resulting in a discrepancy between the host and the storage system. References :- Space reclamation, Enable or disable the space allocation option for a LUN