Yesterday I had 3×1Tb and 1×300Gb in my Drobo, and 1×1.5Tb in the post. So I pulled out the 300Gb and my data became unprotected. The Drobo is still working on that 13 hours later. I’m feeling nervous, because this unprotected period also corresponds with the most furious disc activity that my Drobo sees, so this is a likely time for a drive to fail. Eventually all my data will be on the remaining 3 drives, and will be protected. Then I can insert the new 1Tb drive.
Would it be possible (by tweaking the software) for me to tell the Drobo that I’m about to extract a drive, so it should move stuff off it while it still has it, but in a way that maintains protection?
Then, when the nominated drive is empty, I could pull it out, and insert the new drive very quickly. I’d have been protected throughout.
I realise that this means the code in the Drobo getting quite a bit smarter. I’m avoiding the alternatives which mostly involve my bank balance getting smaller.