thanks for your reply
yes, we have received alert from DFM.
volume full and percentage alert also we are received but not recived continously.
if only volume reached 97% at 1 PM .. this alert will come
but 98 , 99, 100 % reached not come.
so my expectation to monitor the specify volumes with help of some other tools.
for example snapmirror monitor used for snapmirror progress tool