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Recommendation for 12TB X-RAID2 to Mirror Ultra-6 ?
My main storage is an old Ultra-6 running X-RAID2 (i.e. it can lose 2 drives without losing the array). I've been trying to chince out and use a 20-drive DriveBender box to mirror it for backup ...
- If the Ultra 6 has enough performance for your needs then the step up to the 316 should be good. I would use the 316 as your new main NAS with the Ultra 6 as the backup. If you want a big step up in performance we do have the new RN526X and RN626X which have two 10GbE ports. We also have some 8-bay units the RN528X and RN628X which we announced earlier this month at CES.
- You'll need at least 5. Using base-10 that'd give you 12TB. Using base-2 (which is what we use in the GUI on both RAIDiator-x86 and OS6) you'll get 10.91TiB. OS6 doesn't have the expansion limits that RAIDiator-x86 had. You can add additional 4TB disks later. You can also add higher capacity disks as you could with RAIDiator-x86.
- I believe WD REDs now can be used in up to an 8-bay (if you want to use more disks than that you need to look at enterprise disks which are much more expensive). We do have expansion chassis but the expansion chassis would have its own volume. If you had a single volume and the cable connecting the two boxes became disconnected that would cause big issues.
PeteCress wrote:
My main storage is an old Ultra-6 running X-RAID2 (i.e. it can lose 2 drives without losing the array).
I think your questions have been answered.
I just want to add that X-RAID2 is just the second version of X-RAID. The change is that X-RAID2 supports disks of different sizes - the original X-RAID did not. The "2" doesn't mean dual-redundancy (or RAID-6).
So you might want to double-check that you actually are using dual redundancy. What is your current disk configuration?
I agree 100% that my question has been answered.
If/when I do this thing, it will be a 316 with a full house of 4-TB drives running X-RAID2 and then, once I get the 316 loaded; I will migrate the Ultra-6 to the new OS, promote the 316 to being my production NAS box, and demote the Ultra-6 to being the backup box.
Yes, it's 100% certain that the Ultra-6 is running X-RAID2 with dual redundancy: RADiator 4.2.27, 10 TB available, 88% used.
I started out with 6 2-TB drives, upped them all to 3-TB, and lately have replaced 2 of the drives with 4-TB drives as needs arose for 3-TB drives elsewhere. Of course, it is not using all 4 TB of those drives because I have not factory-reset it yet.
PeteCress wrote:
Yes, it's 100% certain that the Ultra-6 is running X-RAID2 with dual redundancy: RADiator 4.2.27, 10 TB available, 88% used.
Sure enough. 6x3TB single redundancy would show a 13 TB volume size.
PeteCress wrote:
If/when I do this thing, it will be a 316 with a full house of 4-TB drives running X-RAID2 and then, once I get the 316 loaded; I will migrate the Ultra-6 to the new OS, promote the 316 to being my production NAS box, and demote the Ultra-6 to being the backup box.
I did something similar with a 526X and my pro-6.
Though if you have a backup NAS you might not need dual redundancy. I went with single redundancy myself (6x3TB in the pro, 4x6TB on the RN526x).
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