D-Nice

A follow-up to my last questions. If I have Disk 1 (8GB) - Data Disk 2 - (8GB) Data Disk 3 - (8GB) Parity Disk 1 has an img file that is 8GB. Disk 2 has a 8 GB iso file. I get the parity part as far as how it determines how to recover based on the bit. My question is where is the actual data (backup) stored? If drive 1 fails the parity drive will rebuild by solving the parity bit. So bit is solved, but where does it grab the data from to rebuild the entire 8GB img file if data is never stored on the parity drive. To my understanding, it's not stored either on drive 2.

Very helpful, thank you!

Yep it's the wiki is pretty much on point with the youtube vid: When I read the parity explanation it makes sense but still mind blowing to say 8 GB will recover 12 GB of data. Seems to make more sense if the data is always spread across multiple drives. However there are options to keep data on specific drives.

I watched a you tube vid that said the parity drive just needs be big as your largest drive. If that is true... just want to make sure it can recover all of the drives I put in. Example Parity Drive 8GB Drive 1 - 8 GB (parity) Drive 2 - 8 GB (data) Drive 3 - 4 GB (data) So total storage is 12 GB, 20 GB? If so, how will a 8 GB drive restore all the data from my total storage per say if I have total storage of 12 GB? Sure if only the 8 GB drive died, only 8 GB needs to be recovered. However the parity drive will need to store the data from the 8 GB and 4 GB to do a full recovery. So if I lost a 8 GB drive it will do a full 8 GB recover to a new 8 GB drive? Just want to make sure I put the right drives in the first time. Let me know what I am missing. Thanks,