I've searched the discussions and found a load of different answers  = now I'm more confused then before...

My situation:

Celerra OS 5.6.47

One Filesystem with 3 qtrees, extended accidentaly with 8TB instead of 800GB (one zero too much), I hate this crap filesystem and its GUIs for administering... Now it is 15TB in size, holy +"*ç%

I need to get one qtree out into its own filesystem (1 TB)

I need to get the 8 TB back for other purposes, but the there is no shrink available...

The other two qtrees use 3.6TB and 2.4TB

All of this is Windows/CIFS data (ACLs)

There seem to be these options:

server_archive

nas_copy

filesystem migration (internaly)

robocopy

emc_copy

Please advise, which one would be the best option to accomplish this.

Thanks a lot!