Installing a lower capacity disk than the ones running

StephenB wrote:

Costikos wrote: ...but what happens with the data on that 2TB? will i have to manually transfer them from the 2TB to another disk and then transfer them back to the new 3TB? or will the system do it on its own? if this happens, will i have to do anything administrative wise? or will it all happen automatically with the removal of the 2TB and the insertion of the 3TB? It all happens automatically. XRAID-2 is giving you single-redundancy - so all your data remains available if one of the drives fails. When you replace a disk, you temporarily lose the redundancy, but your data is all there. The NAS re-establishes the redundancy first (through the resync) and then expands the volume to use the extra space. Note that you should still have a backup though, especially when you are working with the disks. If a drive problem is uncovered during the process above, you usually end up losing all the data, not just some of it. RAID is an all-or-nothing kind of thing. And putting your data exclusively on one device is not a good idea.