Upgrading disks in RN316

Question

I have RN316 with 5 x 4TB disks, X-RAID. I wish to change these for 3 x 12TB from the supported list.
Which method is best / quickest.
I have the NAS connected to a UPS.
A. Remove all the existing disks, insert 3 x 12TB giving 24TB raid 5 and restore the data.

If i insert 12TB resync, insert another, resync, is there a way to downsize back to 3 disks?

StephenB · Answer

mrg9999-01&nbsp;wrote:
All other options require use of Linux commands to shrink the array from 5 disks to 3.
What are these commands / is there a guide?I found thishttps://community.netgear.com/t5/Using-your-ReadyNAS-in-Business/Reducing-RAID-size-removing-drives-WITHOUT-DATA-LOSS-is-possible/td-p/1736125
&nbsp;

That is the guide.&nbsp; It's not info Netgear ever provided.

Sandshark · Answer

Shrinking the volume gets much more complicated if you have drives of different sizes, and thus multiple volumes.&nbsp; Not recommended unless you have a fair amount of Linux experience.&nbsp;Just swapping out 2 drives for larger ones now doesn't prevent future expansion, you'll just be replacing instead of adding a drive.&nbsp; But with drives that old, your idea of starting with all fresh drives is a sound one.

StephenB · Answer

mrg9999-01&nbsp;wrote:
I have RN316 with 5 x 4TB disks, X-RAID. I wish to change these for 3 x 12TB from the supported list.

No particular reason to use the compatibility list.&nbsp; It's not up to date.&nbsp; Any NAS-purposed disk (e.g., Seagate Ironwolf or WD Red Plus) or enterprise class disk will work.
&nbsp;
mrg9999-01&nbsp;wrote:
Which method is best / quickest.

Remove all the existing disks, insert 3 x 12TB giving 24TB raid 5 and restore the data.&nbsp; All other options require use of linux commands to shrink the array from 5 disks to 3.
&nbsp;
But if the&nbsp; 4TB disks are healthy, I'd just get two 12 TB drives and expand the array to 2x12TB+3x4TB.&nbsp; That would also give you a 24 TB volume, and would cost less.&nbsp; The process there is to just hot-swap one of the 4 TB drives, wait for resync, and then hot-swap a second one.

mrg9999-01 · Answer

Thanks for the reply&nbsp;Remove all the existing disks, insert 3 x 12TB giving 24TB raid 5 and restore the data.All other options require use of Linux commands to shrink the array from 5 disks to 3.What are these commands / is there a guide?I found thishttps://community.netgear.com/t5/Using-your-ReadyNAS-in-Business/Reducing-RAID-size-removing-drives-WITHOUT-DATA-LOSS-is-possible/td-p/1736125&nbsp;&gt;But if the 4TB disks are healthy...They're OK, but these 4TB are 10+ years old. Its main function is a snapshot/backup to another brand of NAS.I'd like to add a 4th disk when prices come down or spares from other units become available.

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Upgrading disks in RN316

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