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

Run / usr / bin / readvgcla-V dhbvg -F status on node A and run / usr / bin / putvgda_V dhbvg -a on node B.status = 1

Run / usr / sbin / rsct / bin / dhb_transmit hdisk8 on Node A and run / usr / sbin / rsct / bin / dhb_receive on Node Bhdisk8

Run / usr / sbin / rsct / bin / dhb_read-p hdisk8 -r on node A, / usr / sbin / rsct / bin / dhb_read-p hdisk8 -t

Run echo 1 | / usr / bin / dd of = / dev / rhdisk10 bs = 4k skip = 2 count = 1 on Node A and run on Node Bcommand / usr / bin / dd if = / dev / rhdisk10 bs = 4k skip = 2 count = 1