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X-RAID and Flex-RAID: switching, access later?
Hi, I have a new RN104 with two 3TB disks. I find the easily expandable nature of X-RAID appealing, but have concerns about being able to recover data if the NAS itself breaks. I have a few quest...
With OS-6 switching between single-volume flexraid and xraid is non destructive.
The main benefit of the XRAID software is that it automatically manages volume expansion. But it does that using normal linux software RAID tools. The on-disk structures are all standard RAID, and the RAID volumes can be mounted on other linux systems (for instance Ubuntu).
So the net here is that as far as data recovery goes, there is no real difference between the two.
Your best strategy is to put a solid backup strategy in place, so you don't need data recovery in the first place. Data recovery is very expensive, and in many cases incomplete.
With OS-6 switching between single-volume flexraid and xraid is non destructive.
The main benefit of the XRAID software is that it automatically manages volume expansion. But it does that using normal linux software RAID tools. The on-disk structures are all standard RAID, and the RAID volumes can be mounted on other linux systems (for instance Ubuntu).
So the net here is that as far as data recovery goes, there is no real difference between the two.
Your best strategy is to put a solid backup strategy in place, so you don't need data recovery in the first place. Data recovery is very expensive, and in many cases incomplete.
Thanks for that reassurance -- the ability to mount on another box in future was my biggest worry, but you've put my mind at ease.
Agreed about the backup (and in fact I'm populating the NAS by restoring from an offsite backup after my last storage system gave up the ghost).
Thanks again,
Steve
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