def format():
if DiskHeartbeat.is_in_use():
nodes=DiskHeartbeat().get_all_ts().keys()
print "Warning: Heartbeat disk is in use by:", ", ".join(nodes)
if(raw_input("Proceed ? [y/N]:").upper() != "Y"):
print "Aborded by user."
raise SystemExit(0)
DiskHeartbeat.format()
print "Device", core.cfg['HB_DISK'], "formatted."
