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Forum Discussion
ReadyNASinUK
May 16, 2015Aspirant
Seagate ST3000VN000 (3TB) in ReadyNAS Duo v2 (Edit: Duo V1)
I see from other posts that the Seagate NAS drives are on the HCL, though not for older products like the Duo v2. I have also noted that there is at least one 3TB disk on the HCL for the Duo v2. ......
StephenB
May 19, 2015Guru - Experienced User
Yes, when you upgrade the final 1 TB drive you'd have 3x3TB and a 6 TB volume size.
ReadyNASinUK wrote: Thanks vandermerwe,
Your answer explains how X-Raid get the 4TB from 7TB of disk; obvious when you hear about it: to combine RAID-1 and RAID-5 to maximise data capacity - but very clever. If the 1TB is replaced by another 3TB, then I can see how - and I guess it will - X-RAID will convert everything into RAID-5 for 6GB data.
You would have two layers (a 3x1TB layer and a 3x2TB layer). This is not visible to users though if you poke in the logs or with SSH you can see it. So it is slightly different than a factory install with 3x3 TB, but not in a way that matters to users.
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