by fvdw » Fri May 01, 2015 8:45 pm
a 2 TB disk should work without a problem in a nwsp2 classic.
Some users reported success with cloning the disk but it is always a risk if partitions are expanded. As long as you leave your original disk untouched the cloning trial can not destroy anything. Just try.
About the disk issue you mention. The issue is with disk bigger then 2 TB, then you need to adapt the boot loader of the nwsp2 to be able to use them.
Another point of attention is advanced format disks, those use bigger physical sectors 4k instead of 512 kB, but the same logical sector size of 512 kB. To avoid that performance suffers those disk must use a partition table in which the partitions start on a physical sector boundary and as result need an adapted partition table. Normally disk smaller then 2TB don't have this issue, these are normally not advanced format disks but I seems some around that are advanced format. If yours is advanced format then I do not recommend to clone the 1 TB disk but set up the new disk using the fvdw-sl console. And later copy your data files.