An administrator is concerned about disk I/O and the impact this may have on a PowerHA cluster.
The cluster nodes have virtual disks presented from dual VIO Servers.
What action will improve PowerHA behavior during large disk writes?

A.
Tune syncd to 60 seconds

B.
Tune cluster node disks qdepth to 16

C.
Tune hcheck_interval to 60 on all cluster node shared volumes

D.
Tune I/O pacing with an initial high water mark of 33 and low of 24