When a drive fails, replacing it with a good disk triggers a rebuild process. I believe during the rebuild, any single disk failure will cause all data to be lost. With dual redundancy, I’m hoping that a single-disk failure during a rebuild will not result in total data lost. Can someone confirm the validity of these statements?
I would love too see this demo on a Drobo S with dual redundancy:
- remove a disk.
- replace disk with a blank one. rebuild should start.
- while rebuild is still in progress, remove another disk (not the blank one). check if data can still be accessed.