Which two actions should you take to prevent this problem in the future?

You are running a fabric-attached MetroCluster configuration with ONTAP 9.5software. There is a maintenance window for the upcoming weekend. Plexes in your mirrored aggregates between your two data centers have not been synchronizing for two days.

When the resynchronizations begin, they are not as quick as expected, and the process takes more than a day.

You have been modifying the number of concurrent I/O streams using the storage raid-options modify raid. resync.num_concurrent_ios_per_rg command, but the resynchronization speed stays slow.

You have four separate ISLs between your data centers using Brocade 6510 switches.

Hardware problems are not an issue.

Which two actions should you take to prevent this problem in the future? (Choose two.)
A . Update to at least ONTAP 9.4 software.
B . Restart the resynchronizations after modifying storage raid-options modify raid.resync.num_concurrent_ios_per_rg command.
C . Avoid changes on your aggregates during the maintenance window.
D . Take the corresponding plexes offline before maintenance to avoid a base-level synchronization.