Re: Actual Data storage capacity. I looked up the capacity checker and found what I expected; namely that 8TBs yield around 7.4TBs of useable space. But that has to be due to how bits are calculated on HDDs and not about the actual data that can be stored on Drobos after taking redundancy into consideration. I don't need a scientific explanation about "beyond RAID" but I do need to know this.
My current RAID setup is 4 TBs set to RAID 1 and yields only 2 TBs of data storage space with 2 TBs used as a mirrored backup of that data. "Beyond RAID" has to be something very special to escape this basic fact of life. I really like the idea of having a DROBO but I need to know how many photos my 8TBs are going to store not including the back up so that I can see for myself how much of an advantage DROBO actually is over standard RAID configurations.
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