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Forum Discussion
Expansion to 6x4tb
Hey all This expansion math is giving me a head-ace .... and Im actually not that bad in math. Anyway, I have a 6 bay ReadyNAS Pro Business with Raidiator 4.2.24 I wanted to do some expansion o...
For dual redundancy, you subtract the two largest drive capacities from the total. For single redundancy, you subtract the largest drive capacity from the total.
5x4TB with dual redundancy gives you a ~10.9 TiB volume (12 TB). If you add one more drive, it would go up to 14.5 TiB (16 TB). TiB = "power of two" terabytes, which is what the NAS (and windows) reports.
And yes, that is about the same storage as you had to begin with. The gain in this case is having dual redundancy, not really the space.
Did you want dual redundancy? If not, go with 6x4 TB (all at once) and do a factory reset. That will get you 20 TB. Note you can't expand across the 16 TiB threshold. That's why you'd want to do all 6 at once.
5x4TB with dual redundancy gives you a ~10.9 TiB volume (12 TB). If you add one more drive, it would go up to 14.5 TiB (16 TB). TiB = "power of two" terabytes, which is what the NAS (and windows) reports.
And yes, that is about the same storage as you had to begin with. The gain in this case is having dual redundancy, not really the space.
Did you want dual redundancy? If not, go with 6x4 TB (all at once) and do a factory reset. That will get you 20 TB. Note you can't expand across the 16 TiB threshold. That's why you'd want to do all 6 at once.
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