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Forum Discussion
Combination of 6TB and 4TB disks inserted to RN104
Hello,
I need a small piece of info confirming;
I have a four bay system Ready NAS 104. bays 1 & 2 have 6TB HHD and are set up as X-Raid. I have added two more HDD to bays 3 & 4 butthey are only 4TB capacity. Is the smaller size the reason thay arn't being added to the set up ? I formatted them (3 & 4) and rebooted but still they wont add themselves !
Thanks in advance
H
13 Replies
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Yes, you can only add disks with the same or greater capacity to an array.
You should be able to create a new volume on the 2 new disks though. but this will be inefficient use of the disks you have.
vandermerwe wrote:
You should be able to create a new volume on the 2 new disks though. but this will be inefficient use of the disks you have.
Well that depends. You could add 2 jbod volumes, which would give you 8 TB of non-redundant storage. Certainly not inefficient.
Adding 1 RAID-1 volume would give you 4 TB.
Thanks very much for your replies.
They confirm my suspicions about disk size stopping what I was hoping to achieve.
H
This is a case where the ordering matters. If you had started with 2x4TB and added 2x6TB you'd have 14 TB of total storage with single drive redundancy.
So one option is to do a factory reset with all disks in place, rebuild the NAS (reconfigure, reinstall any apps) and restore the data from backup.
Wouldn't you have to do a factory reset with the 2x4TB drives i nplace first, and then add the 6TB drives and expand the volume? I was under the impression a factory reset with different sized drives effectively treats the larger drives as smaller drives? Or have I got that wrong?
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