Which of the Following Commands Will Test the Heartbeat Disk

Which of the following commands will test the heartbeat disk connectivity?

A) Run / usr / bin / readvgcla-V dhbvg -F status on node A and run / usr / bin / putvgda_V dhbvg -a on node B status = 1
B) Run / usr / sbin / rsct / bin / dhb_transmit hdisk8 on Node A and run / usr / sbin / rsct / bin / dhb_receive on Node B hdisk8
C) Run / usr / sbin / rsct / bin / dhb_read-p hdisk8 -r on node A, / usr / sbin / rsct / bin / dhb_read-p hdisk8 -t
D) Run echo 1 | / usr / bin / dd of = / dev / rhdisk10 bs = 4k skip = 2 count = 1 on Node A and run on Node B command / usr / bin / dd if = / dev / rhdisk10 bs = 4k skip = 2 count = 1