Re: Suggestions for building new 44TB Raid5 array

[Andrei Borzenkov <arvidjaar@gmail.com>]

On 20.06.2022 18:01, Marc MERLIN wrote:
>>  I have a stupid question to ask : Why use btrfs here ? Is not mdamd+xfs good enough ?
>  
> I use btrfs for historical snapshots and btrfs send/receive remote
> backups.
> 
>>  If you want snapshot why not use ZFS then ? i try to use btrfs myself and meet a lot of issues with it that i did not had with mdadm+ext4. Perhaps btrfs is not suited to that use (here raid5) ?
> 
> ZFS is not GPL compatible and out of tree.
> 
>>  ZFS has crypt, raid5 like array and snapshot and LARC cache allready so no need to add 4 layer on it. It seems a solution for you.
> 
> It has a few of its own issues, but yes, if it were actually GPL
> compatible and in the linux kernel source tree, I'd consider it.
> 
> It's also owned by a company (Oracle)

ZFS on Linux is not owned by Oracle to my best knowledge.

https://openzfs.github.io/openzfs-docs/License.html

 that has tried to sue others for
> billions of dollars over software patents, or even an algorithm, i.e.
> not a company I'm willing to trust by any means.
> 
> Marc