A customer with an FC MetroCluster configuration that is running NetApp ONTAP 9.8 software experienced a site outage and wants to know why the MetroClusler configuration did not switch over to the other site.
What are two reasons for this problem? (Choose two.)
A. There was a failed PSU in the switchover site.
B. The ISLs were down between the sites.
C. The site had unmirrored aggregates.
D. An ISL link was not operating at 16Gbps.