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ReadyNas 214 adding 10Tb disk to 2 x 6Tb existing - single volume?
Hi - I've finally arrived at maxing my current RAID-0, 2 x 6Tb drives. I'd like to simply add another 10Tb drive to the volume - to arrive at 22Tb storage. I'm not concerned about redundancy or performance as the entire lump of storage is replicated up from a Windows Storage Spaces based setup - adding disks here to the pool is easy. How do I do this with the ReadyNas - I've read something about adding Groups in the latest firmware docs - but cannot see how to do this with my NAS. When the new, empty 10Tb disk was added - and I click on it - the option to expand does appear on the existing RAID-0 config - but going down this route results in an error - "disk not found". Currently I've had to settle with simply adding in a second volume - for which I'll have to setup a second share etc.
Is it possible to create a single volume comprising of different sized disks?
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mrfoster wrote:
Currently I've had to settle with simply adding in a second volume - for which I'll have to setup a second share etc.
Is it possible to create a single volume comprising of different sized disks?
The answer used to be no, but I'm not sure now either. This guide suggests that you could add a "concatenated group" to your existing volume, which I think has the same effect as expanding it. https://www.downloads.netgear.com/files/GDC/READYNAS-100/ReadyNAS_FlexRAID_Optimization_Guide.pdf
See the table on page 13.
If it works, please post back and let us know...
Hey Stephen,
Thanks for posting. I saw the exact same piece of documentation - so was hopeful.. However, all I see is the option to "expand" - then beyond that I get the error as mentioned. Can anybody chime in on how the new "concatenated group" should work?
I have done concatinations on a JBOD array, but I used drives of the same size. I'm not sure what would happen with a drive of a different size. The end result is what most manufacturers call "spanned".
I was running some tests (unfortunately, not concatinating a RAID0) and did see some instances where an option appeared to be available but ended up with an error, as yours did. What I tried to do was definately not allowed, but the GUI incorrectly showed it was.
If you read the document quite literally, it says you can concatinate a RAID to another RAID. And since a RAID needs at least two drives, that may be the key. There may also be an unstated size issue as compared with the original drives.
Sounds like time for some more experiments.
If you have a backup and are willing to try something out that will require destroying the volume, try using a single drive as JBOB, then do an "Add Group" with each of the other drives. I think that just may work to get full use of your drives.
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