@martin @daftaupe
Tried btrfs à long time ago. Snapshots Can be great for OS Drive. But for data storage nothing Can Beat mdadm+lvm2. Big problem with btrfs : you can't know how much space is still available. (At the Time i checked it at least.)

@hoper @martin You can use btrfs filesystem df for example to know how much space is available (or used). or btrfs filesystem du to get details about a particular file.

@daftaupe @martin
Seems that things change, but according to the FAQ, there are still some issues with this matter (know how much Space left and use it)
btrfs.wiki.kernel.org/index.ph
Il still think that mixing réplication (raid) and file system is a very bad idea.

@hoper @daftaupe @martin why would you think mixing FS/RAID is a bad idea? I'd argue it is a very good idea :)

@fink @daftaupe @martin
This break the "layer" model. i have 3 layer : raid, volume management, and fs (Can Swap the two first). If one of them is upgraded or replace by another, no problem. This also respect the unix philosophy : do a single thing, but do it well. Computing had always used layer model (network...). Because it's good and reliable. And for me, keeping my data safe is the most important thing.

@hoper @fink @martin Talking about data safety I wonder why Synology is recommending btrfs (they probably want to take the risk of putting their customers data in danger), synology.com/en-us/dsm/Btrfs. I think you might be interested about the paragraph related to data corruption. By the way which fs are you using that provides the same features ?

Suivre

By the way, talking about links, what about his one ?
btrfs.wiki.kernel.org/index.ph
"The parity RAID code has multiple serious data-loss bugs in it. It should not be used for anything other than testing purposes."

Or this one :
phoronix.com/scan.php?page=new
Saying that very serious bug about raid have been corrected in linux 4.16. (Sorry, I'm still using a 4.9 kernel, and I think this is not so old...)

It's good to see people making news things, and other in a hurry to test it...

Me ? I will wait :)

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