Stopping clients: oleg136-client.virtnet /mnt/lustre2 (opts:)
Stopping client oleg136-client.virtnet /mnt/lustre2 opts:
COMMAND   PID USER   FD   TYPE      DEVICE SIZE/OFF               NODE NAME
dd      72979 root    1u   REG 1273,181606        0 144115205306061172 /mnt/lustre2/racer0/3/4 (deleted)
/mnt/lustre2 is still busy, wait one second