Buffalo Forums

I've been using  an LS220DE S/n 80196254400034 with 2x 2Tb H/D's in mirror setup for many years and am very happy with it, my question is

can I inset a 4Tb drive copy the data off the 2Tb then insert another 4Tb and mirror the first 4Tb and end up with 2x 4Tb mirrored drives

with the extra space? I've also tried to contact Buffalo support with no response soo I'm hoping someone here can help me

I'm wondering the same thing but I have a LS520D with 2x4TB drives in Raid1 (mirrored). I want to upgrade to 2x 6TB or 2x8TB
I have a feeling it doesn't work on the lower end nas like ours and you need a more high end on like the terastation.
It would be nice if you could just take one of your 1TB drives out, replace it with a 2TB drive and let it rebuild, then take the final 1TB dive out and put your other 2TB drive in to be left with a nicely mirrored 2TB overall with lots of space but even if it did "work" I think you'd still just end up with 1TB space available.

I think your only option might be to:
-install one of your 2TB drives in your pc and format it for windows (assuming this is what you're using)
-copy everything from your 1TB raid NAS onto that.
-Then install you other 2TB drive in the nas on it's own and allow it to rebuild/reformat blank.
-copy all your stuff from the 1TB in your PC onto that new 2TB nas
-take the 2tb out of your pc and insert it into your nas. allow it to rebuild and format that drive and set up you a new raid 1 (mirrored).
-You should be good to go with a newly built 2TB raid with all your original files on.