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readyNAS capacity
Hi! I'm new to the NAS world and I'm lost 🙂 In my office there has always been a ReadyNAS pro 6 that was quite unused. We decided to repurpose it and I have updated (successfully!) to OS 6 and cha...
clavz wrote:
Having the disks so uneven in size, I thought that RAID 10 could give me the characteristics I wanted and most storage. I thought the system wold have the 0.5 GB, one 1TB and one 4TB disks as storage, and the other for copies, leading to 5.5 TB storage, that would became 6TB after swapping the 0.5TB disk.
It's a pure RAID-10 setup, so all disks are treated as equal size. You ended up with 3 paired 0.5 TB partitions, so 1.5 TB total. If you'd swapped the 1 TB disk before setup, you'd have 3 TB - still wasting the space on the 4 TB drives.
If the simplest recovery is the primary objective, you could also create three RAID-1 volumes. Or maybe a 4x1TB RAID-10 volume plus a 2x4TB RAID-1 volume.
Why not just use X-RAID? 1x500GB + 3x1TB + 2x4TB XRAID would give you 7.5 TB of space, which would become 8 TB after you replace the 500 GB drive. But personally I'd just take out the 500 GB drive, and leave one empty slot. It's likely very old, and doesn't add enough storage to be worth the bother. I also don't see a lot of value in getting a new 1 TB drive, as the price difference between 1 TB and 4 TB is so small. 3x1TB+3x4TB XRAID would give you an additional 3 TB of storage for perhaps $20 USD over the cost of a 1 TB drive.
Do be careful to purchase NAS-purposed or enterprise class drives though - many desktop class drives in the 2-6 TB range are SMR, which aren't a good fit for RAID (or ReadyNAS in general). Avoid WD Red - Red Plus or Red Pro are fine, as are Seagate Ironwolf. WD Reds are also SMR (poor decision by WD).
clavz wrote:
Having the disks so uneven in size, I thought that RAID 10 could give me the characteristics I wanted and most storage. I thought the system wold have the 0.5 GB, one 1TB and one 4TB disks as storage, and the other for copies, leading to 5.5 TB storage, that would became 6TB after swapping the 0.5TB disk.
It's a pure RAID-10 setup, so all disks are treated as equal size. You ended up with 3 paired 0.5 TB partitions, so 1.5 TB total. If you'd swapped the 1 TB disk before setup, you'd have 3 TB - still wasting the space on the 4 TB drives.
If the simplest recovery is the primary objective, you could also create three RAID-1 volumes. Or maybe a 4x1TB RAID-10 volume plus a 2x4TB RAID-1 volume.
Why not just use X-RAID? 1x500GB + 3x1TB + 2x4TB XRAID would give you 7.5 TB of space, which would become 8 TB after you replace the 500 GB drive. But personally I'd just take out the 500 GB drive, and leave one empty slot. It's likely very old, and doesn't add enough storage to be worth the bother. I also don't see a lot of value in getting a new 1 TB drive, as the price difference between 1 TB and 4 TB is so small. 3x1TB+3x4TB XRAID would give you an additional 3 TB of storage for perhaps $20 USD over the cost of a 1 TB drive.
Do be careful to purchase NAS-purposed or enterprise class drives though - many desktop class drives in the 2-6 TB range are SMR, which aren't a good fit for RAID (or ReadyNAS in general). Avoid WD Red - Red Plus or Red Pro are fine, as are Seagate Ironwolf. WD Reds are also SMR (poor decision by WD).
Thank you, I didn't understand how RAID 10 worked, then. I will switch to X-RAID.
Thank you for the advice on SMR drives, the 2 4 TB drives are ironwolf. I have been lucky ordering them without knowing.
The 1 gb has been sitting in another unused nas of a colleague of mine. Probably not gonna use it after the suggestion on old disks (or maybe I will swap it later? It looks like this X-RAID is really flexible).
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