Raid changing automatically

sorry, its a bit misleading

i bought it with one drive and i have only purchased another two so far for a total of 3

1 drive - no redundancy
2 drives - redundancy - similar to RAID-1
3 drives - RAID-5 - redundancy - expansion
4 drives - RAID-5 - redundancy - expansion

With X-RAID2 single-redundancy with two or more disks, the volume capacity would be that of all the disks added together less the capacity of the largest disk.

mdgm wrote:
...With X-RAID2 single-redundancy with two or more disks, the volume capacity would be that of all the disks added together less the capacity of the largest disk.

Which is 12 TB if you go with 4x4TB drives (4*4TB - 4TB -> 12 TB). The NAS will report this in TiB (1024*1024*1024*1024 bytes = 1 TiB), so it should report ~10.9 TiB.

That is, 12*(1000*1000*1000*1000)/(1024*1024*1024*1024) = 10.91. The calculation ignores space for the OS partition and other overhead, so you will see a bit less.

The capacities with 4 TB drives and single redundancy xraid2 are:
1 drive - no redundancy: 4 TB (or 3.6 TiB)
2 drives - redundancy: 4 TB (or 3.6 TiB)
3 drives - redundancy: 8 TB (or 7.2 TiB)
4 drives - redundancy: 12 TB (or 10.9 TiB).

Ahhh gotcha,

Cheers, thanks all.

Looks like I am going to buy another drive :D

Thanks again!

Hi,

sorry to bother you again, I inserted the third drive and it took about ten hours to load up, but it hasnt increased the expansion.

its currently set at x-raid, do i have to change it to flexraid? what would be the procedure to do that?

thanks

Hi,

Sorry, anyone have an answer to this?

Thanks.

Don't change it to flexraid.

Try rebooting, If that fails contact support via support.netgear.com.

too late :(

I tried changing back to xraid and it wont let me. what will happen if i remove two drives and change to xraid? or should i just buy a back up drive and copy my data across then do a factory reset?
i think that would be safest.

Bobbie,
As you suggest, I would prefer that you backup data on first disk. Then insert all three, and Factory reset.
Stick to default X-RAID.

Are disks 2 & 3 new? If there is data on disks 2 or 3, they will not add to Volume.

See page 2 of 2 on
http://www.readynas.com/forum/viewtopic.php?f=66&t=72184&start=15

Regards, Marto

Have you got your issue resolved? I have a 516 with 4 TB disk. After I put in the third or greater disc the 516 expanded first and then synced the volume. It took almost 33 hours to do both. Did the reboot help? Back up your data and then I would try shutting the NAS down unplug it wait 30 seconds then cut it back on. Wait at least an hour to see if it starts resyncing the volume. This is what work for me. I did not have to do a factory reset but thought I might have to. Please post results.
Bigbearf


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