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Forum Discussion
Grunchy
Aug 28, 2021Aspirant
Anybody know how big a volume I can create with Radiator 4.2.31?
I've got these Western Digital 6TB gold drives (please see attached file). Here's the thing. If I let the ReadyNas 2100 create an X-Raid2 volume it uses up all of the space, and then it says the ...
- Aug 28, 2021
Thanks everybody for your advice.
The final number: 16,273,912 MB is what you would put in. That's including "10 GB" for snapshots, although I think the software is in error, I think that really means "10 %" for snapshots.
(If you put 16,273,913 MB that is the smallest size that is too big to be created into a successful volume.)
For ReadyNas 2100 v1 running Raidiator 4.2.31.
StephenB
Aug 28, 2021Guru - Experienced User
4x6 TB disks would result in an 18 TB (16.4 TiB) volume. As mdgm says, that ought to work in a 4.2.x ReadyNAS - though you wouldn't be able to expand it. What firmware are you running?
The 2100v1 has a 32 bit architecture, so it might be more limited than the v2.
FWIW, building the RAID array takes the same amount of time for an empty volume as it takes for a full one. RAID works at the raw block level (creating a virtual disk), and the parity blocks need to be built for every data stripe (even when the disk is empty).
Grunchy
Aug 28, 2021Aspirant
Hi guys it's ReadyNas 2100 v1 running Raidiator 4.2.31.
Attached, see what it does if I say 12000000 MB.
- GrunchyAug 28, 2021Aspirant
This is what I get if I say 16631066 MB: it says disk is 100% full with 24 hrs to rebuild.
Also once that 24 hrs goes by, it stays at 100% full.
I know, "it should work" but it doesn't work.
- SandsharkAug 28, 2021Sensei
Raidiator 4.2.x uses mdadm and LVM for creation of volumes. Everything I have found says LVM is limited to "16TB" on a 32-bit Linux installation. Now, since that's based on the bus width, I assume they actually mean 16TiB, which you are under. But perhaps there is something in the Netgear Frontview portion that causes the issue.
When you say "I can't do anything with it. No error state, just inaccessible", does that mean you tried to actually put files into that "full" volume and it failed (after completion of sync)?
Do you have SSH enabled? If so, what do you get from the following commands?
cat /proc/mdstat
lvdisplay
pvdisplay
vgdisplay
The best way to put the results into a message is to use the insert code </> icon at the top of the editor.
- GrunchyAug 28, 2021Aspirant
Thanks everybody for your advice.
The final number: 16,273,912 MB is what you would put in. That's including "10 GB" for snapshots, although I think the software is in error, I think that really means "10 %" for snapshots.
(If you put 16,273,913 MB that is the smallest size that is too big to be created into a successful volume.)
For ReadyNas 2100 v1 running Raidiator 4.2.31.
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