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Forum Discussion
BTRFS & LVM
Hi, I was very excited when I realised, that Netgear is now using btrfs. Mainly because it would help a lot when changing disk in a raid0 without the need of destrying the complete raid. (I dont ...
Integrating raid-like features into the file system itself has a lot of advantages, so it is an industry trend worth watching.
ReadyNAS expands from single disk jbod to raid-1 to raid-5 automatically, and the automatic expansion feasure is very important to the bulk of the users. If they tried to use the raid-like features in btrfs for jbod and raid-1, they won't be able to expand to md raid-5 w/o a factory reset. Using the experimental features prematurely would cost Netgear customers (very few users are willing to take needless chances with their data integrity).
So instead they developed an alternative way to get bit-rot protection, which gives them most of the benefits of btrfs now, while staying away from experimental features. Later on when they become stable, they can do more.
I think you've answered your original question here.
Gonzo-already_in_use wrote: ...okay, yes, there may exist some other users, which have to rely on Raid5/6...
ReadyNAS expands from single disk jbod to raid-1 to raid-5 automatically, and the automatic expansion feasure is very important to the bulk of the users. If they tried to use the raid-like features in btrfs for jbod and raid-1, they won't be able to expand to md raid-5 w/o a factory reset. Using the experimental features prematurely would cost Netgear customers (very few users are willing to take needless chances with their data integrity).
So instead they developed an alternative way to get bit-rot protection, which gives them most of the benefits of btrfs now, while staying away from experimental features. Later on when they become stable, they can do more.
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