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Forum Discussion
ReadyNAS 104 - Don't want to use RAID
Hi I do want to use the volume feature of the nas at all, I would like to use something like mhddfs to present the drives, but it looks like by default the system doesnt allow me to do that ...
You need to use the volume feature, but you don't need to use RAID. You can switch to flexraid, destroy your existing volume, and then create a new one using JBOD.
Generally I don't recommend spanning multiple disks with a single RAID-0 or JBOD volume, since if any disk fails then all data is lost. When I use JBOD myself, it's always with one volume for each disk.
I dont want to use JBOD with four different volumes, which is why I want to mhddfs.
Thanks anyway
voidness wrote:
I dont want to use JBOD with four different volumes,
I didn't say you couldn't use JBOD to create a single volume. I said I didn't recommend it. I wouldn't recommend mhddfs either.
You can select all four disks, and create a single JBOD volume that spans all of them. There will be no RAID redundancy, so the volume size is the sum of the disks (the NAS reports size in TiB, not TB btw). You can get the same result by choosing RAID-0 (which organizes the virtual disk a differently).
StephenB wrote:
You can select all four disks, and create a single JBOD volume that spans all of them. There will be no RAID redundancy, so the volume size is the sum of the disks (the NAS reports size in TiB, not TB btw). You can get the same result by choosing RAID-0 (which organizes the virtual disk a differently).One advantage of JBOD over RAID0 here is its ability to fully use the capacity of each drive in case of mixed capacity.
jak0lantash wrote:
One advantage of JBOD over RAID0 here is its ability to fully use the capacity of each drive in case of mixed capacity.Yes. The tradeoff is that RAID0 striping gives a speed advantage, but JBOD handles mixed drive sizes.
But since RN104 is CPU bound, he won't get that speed benefit in practice - so there really is no tradeoff to make. JBOD would be the right choice.
If the NAS were faster, then RAID0 might be worth considering.
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