NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
XRAID 2
Hi I have a question, I have the following HDDs available to put in a 314,
2 x 2TB and 2x3TB, now I also have and additional 2x 2TB available I can use, I am trying to maximise the amount of space in the NAS my question is which will give me the most usable space and which RAID will it be in.
So I could do 4 x 2TB or I could do 2 x 2TB and 2x 3TB alternatively I could do 3 x 2TB and 1 x3TB, I assumed if I put in 2 x 2TB and 2x3TB that it would raid one the volumes or is it likely to raid 5 but at 2TB ??
Hope that makes sense.
thanks
K3v1n.
2 x 2TB and 2x3TB, now I also have and additional 2x 2TB available I can use, I am trying to maximise the amount of space in the NAS my question is which will give me the most usable space and which RAID will it be in.
So I could do 4 x 2TB or I could do 2 x 2TB and 2x 3TB alternatively I could do 3 x 2TB and 1 x3TB, I assumed if I put in 2 x 2TB and 2x3TB that it would raid one the volumes or is it likely to raid 5 but at 2TB ??
Hope that makes sense.
thanks
K3v1n.
3 Replies
k3v1n wrote: I am trying to maximise the amount of space in the NAS
....
I could do 4 x 2TB or I could do 2 x 2TB and 2x 3TB alternatively I could do 3 x 2TB and 1 x3TB, I assumed if I put in 2 x 2TB and 2x3TB that it would raid one the volumes or is it likely to raid 5 but at 2TB ??
The largest sized disk in your NAS will not contribute to your usable space... So 4x2TB will give you 6TB usable, and 3x2TB + 1x3TB will also give you 6TB usable. 2x2TB + 3x3TB will give you 7TB usable, so you should use that combination.
All these numbers are approximate (and higher than you will actually see) because- the size reported by the NAS and by your operating system is in TiB (one TiB = 1,099,511,627,776 bytes), but the sizes of your drives are reported by the drive manufacturer in TB (1TB = 1,000,000,000,000 bytes)
- there is some overhead -- 1 or 2 percent -- required by the RAID array.
Regardless of the exact numbers, though, 2x2TB + 2x3TB will give you around 16% more space than you will get with the other two combinations.- Appreciated thank you for you comprehensive post makes answers my question exactly, does it matter what order the disks go, i.e. do I need the 2 x 3TB drives in slot 1 & 2 or should the smaller 2TB go in slot 1 & 2 and the 3TB in slot 3 & 4 ?
Thanks
K3v1n
The slot order does not matter. If you are inserting the disks one at a time, then you need to insert the smallest disks first. Though on an initial install it is better to just put them all in at once and then power up.k3v1n wrote: ... does it matter what order the disks go, i.e. do I need the 2 x 3TB drives in slot 1 & 2 or should the smaller 2TB go in slot 1 & 2 and the 3TB in slot 3 & 4...
NETGEAR Academy
Boost your skills with the Netgear Academy - Get trained, certified and stay ahead with the latest Netgear technology!
Join Us!
