Xraid2 and HDD Upgrades

coolsnaz wrote:
mdgm:I never knew about that 8TB expansion limit, is that a limit of the Unit or Xraid2? and as the first HDD added to the "life" of the volume was 2TB does that mean my limit is 2TB + 8TB = 10TB limit? and is the Redundancy included as an expansion?

there are two limits, and both apply to the available capacity (not including the redundancy). One is that you can't expand beyond 16 TB total. The second is that you can't expand more than 8 TB from the capacity at your initial install/last factory default. If you started with a single 2 TB installed, then your ceiling is 10 TB. Your new configuration has 9 TB total available space, so your new configuration is still just under the limit.

The way to overcome both these limits is to do a factory default with all your disks in place. This deletes all your data, including your configuration (add-ons, users, share definitions, etc). So you need to reload everything from backup. The more data you have, the more time consuming this becomes. So as mdgm suggests, it might be easier to do it sooner. Though I think I would wait until you install the 2nd 3 TB drive. At that point you have about 9 TB available space, so defaulting then allows you to expand in the future up to the full 16 TB ceiling.

Both of these are OS (linux) limitations.

coolsnaz wrote:
StephenB: Ah that is good news, the way I saw it describe made it sound like drive two was my redundacy, and not by having it split across all the HDD. So I should be able to keep my resilience, simply by adding my 3TB drive. So if I have this right, by adding 1x 3TB should increase my capcity (regardless of where it is put) by 2TB and when I add my second 3TB HDD I get the full 3TB?

Yes. So this expansion is easier than you were thinking.