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Forum Discussion
Easiest RAID configuration to recover data if ReadyNAS fails
Hello, I have a ReadyNAS 104 and am not able to buy another quickly if mine fails someday (the NAS, not the drives), because I live in Brazil and hardware of this type here is prohibitely expensive...
In terms of ease of data recovery, jbod and RAID-1 are probably equivalent, since you can recover data from a single disk. RAID-1 is clearly better for handling normal disk failures (where data recovery is not an issue).
mdgm wrote: So you have two drives in the NAS now?
If you disable X-RAID after adding the third disk, you should see the option when adding the fourth to convert the volume to RAID-6. I don't think you can convert to RAID-10 this way.
I'm not sure I see a huge benefit to RAID-10 over RAID-6 though (at least as far as data safety goes). RAID-10 is usually faster, but doesn't handle all 2 disk failure combinations. There are 6 combinations of 2 disks failures in a 4 disk system, and RAID-10 can only handle 4 of them. So if data safety is the main concern, then I'd probably go with RAID-6, and make sure I had a second system (PC or another NAS) which would let me connect 2-4 disks, so I could recover with a VM or linux boot CD if needed.
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