Stopping clients: oleg105-client.virtnet /mnt/lustre2 (opts:)
Stopping client oleg105-client.virtnet /mnt/lustre2 opts:
COMMAND   PID USER   FD   TYPE      DEVICE SIZE/OFF               NODE NAME
dd      63169 root    1u   REG 1273,181606        0 162129603815541090 /mnt/lustre2/racer0/8/5
/mnt/lustre2 is still busy, wait one second