drbd:
536870912 bytes (537 MB) copied, 11,2922 s, 47,5 MB/s
536870912 bytes (537 MB) copied, 11,408 s, 47,1 MB/s
536870912 bytes (537 MB) copied, 11,3582 s, 47,3 MB/s
536870912 bytes (537 MB) copied, 11,4412 s, 46,9 MB/s
536870912 bytes (537 MB) copied, 11,4331 s, 47,0 MB/s

md:
536870912 bytes (537 MB) copied, 4,726 s, 114 MB/s
536870912 bytes (537 MB) copied, 4,75838 s, 113 MB/s
536870912 bytes (537 MB) copied, 4,75005 s, 113 MB/s
536870912 bytes (537 MB) copied, 4,76689 s, 113 MB/s
536870912 bytes (537 MB) copied, 4,79176 s, 112 MB/s