You have a remote FlexCache storage device that is running on ONTAP Select 9.8 software. The cache origin volume is on an FAS8700 that is running ONTAP
9.8 software. The WAN connection dropped, and the FlexCache volume is in disconnected mode.
In this scenario, which LIFs would you ping to troubleshoot the disconnect?
In the scenario described, where the FlexCache volume is in disconnected mode and the WAN connection dropped, you would need to troubleshoot the connection between the clusters. To do this, you would ping the intercluster LIFs, as intercluster LIFs facilitate communication between different clusters, which is essential for FlexCache operations across geographically separate locations.
I think D, because its need cluster peers...
I think its D
D 4.7 disconnected mode https://www.netapp.com/pdf.html?item=/media/7336-tr4743pdf.pdf
Answer is b
Answer D: Replication between two clusters can occur on the intercluster network only; this is true regardless of whether the intercluster network is on the same subnet as a data network in the same cluster. https://library.netapp.com/ecmdocs/ECMP1610205/html/GUID-922151FD-8B45-4D88-B3EC-D776021A7888.html
D replication happens on intercluster network
pinging cluster lif makes no sense because you can reach only nodes on the same cluster and nothing outside the cluster. And the FlexCache is outside.
https://docs.netapp.com/ontap-9/topic/com.netapp.doc.pow-fc-mgmt/GUID-AE9CC59E-BE3B-4185-B018-E3F089CB53B0.html?cp=17_0_2
D as cluster LIFs are used for intra cluster communication
Answer is D, When a cluster peering is set up, the relationship between two clusters is configured over the Intercluster network. https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/What_is_an_Intercluster_network%3F
B is the correct answer based on the KB going over FlexCache Disconnected mode. It says if the WAN is down and FlexCache is in disconnected mode that means that the Intercluster lif is failing somehow. We know that the intercluster lif is down, pinging it wouldn't help - you would ping the cluster and make sure it's still functioning. "Sometimes the cluster that houses the origin and the cluster that houses the FlexCache volume cannot talk to each other over the intercluster LIFs due to WAN issues or other problems."
D Intercluster LIFs are used for peering. Peering accepts snapmirror|file-copy|lun-copy|flexcache applications
Intercluster lif, bcoz FlexChache volume resides in another cluster.