Stopping clients: oleg207-client.virtnet /mnt/lustre2 (opts:)
Stopping client oleg207-client.virtnet /mnt/lustre2 opts:
COMMAND   PID USER   FD   TYPE      DEVICE SIZE/OFF               NODE NAME
dd      70543 root    1u   REG 1273,181606 11796480 162129603815542616 /mnt/lustre2/racer1/13/10 (deleted)
/mnt/lustre2 is still busy, wait one second