I would like to be able to copy the entire site collection http://server.ltd/sites/ABC to http://server.ltd/sites/DEF
is there any easy solution, because I tried to Save as template at the site level then tried to upload the solution to the newly created site collection but it failed.
Is this even possible ?
You can use powershell for that:
and then restore with:
Make sure you check the available options like preserving security information, versioning, etc:
http://technet.microsoft.com/en-us/library/ee748617(v=office.14).aspx
http://technet.microsoft.com/en-us/library/ff607788.aspx