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Expanding Disk Space on raid 10
firmware 6.5.0 readynas 2120 I’m use 4---2TB drives with raid 10, total storage 4TB. I want to add more storage. I’ll either switch to raid 5 or get larger drives and stay with raid 10. I only h...
RAID6 on 4 HDDs with ARM CPU is going to be slower than RAID5. Imo, the difference of performance between RAID5 and RAID10 is not going to make any significant difference in your case. Unless you'll never use the capacity it would give you with the HDDs you have, I would pick RAID5.
It depends what you're trying to do, what data you're gonna store, etc.
(With 4 HDDs)
For pure redundancy, use RAID6 (or even RAID1, but not possible from GUI).
For capacity with some redundancy, use RAID5.
For performance with some redundancy, use RAID10.
For pure capacity, use JBOD.
For pure performance, use RAID0.
Also, if you're asking yourself to change or not, I presume you're in a situation where you can change. So I'd advise to actually try the three different options, benchmark performance, take into account the redundancy, and select the one you want.
If you don't have any specific requirements, on 4 HDDs, RAID5 is often the "one size fits all".
(With 4 HDDs)
For pure redundancy, use RAID6 (or even RAID1, but not possible from GUI).
For capacity with some redundancy, use RAID5.
For performance with some redundancy, use RAID10.
For pure capacity, use JBOD.
For pure performance, use RAID0.
Also, if you're asking yourself to change or not, I presume you're in a situation where you can change. So I'd advise to actually try the three different options, benchmark performance, take into account the redundancy, and select the one you want.
If you don't have any specific requirements, on 4 HDDs, RAID5 is often the "one size fits all".
This NAS or our backup storage.
I'm think raid 5 is the way to go.....capacity+redundancy
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