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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.
How about synchronization?
My Bad: This question has already been answered in another thread.
FWIW the answer is "Yes" - use rsync backup.
Also, once the new box is loaded, the Ultra-6's OS can be changed to OS 6 (unsupported, but apparently works...) which would allow something called "ReadyDR".
You could use backup jobs to backup data from one NAS to the other.
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