Btrfs RAID-10 performance

[Miloslav Hůla]

I cannot verify it, but I think that even JBOD is propagated as a 
virtual device. If you create JBOD from 3 different disks, low level 
parameters may differ.

And probably old firmware is the reason we used RAID-0 two or three 
years before.

Thank you for the ideas.

Kind regards
Milo

Dne 10.09.2020 v 16:15 Scott Q. napsal(a):
> Actually there is, filesystems like ZFS/BTRFS prefer to see the drive 
> directly, not a virtual drive.
> 
> I'm not sure you can change it now anymore but in the future, always use 
> JBOD.
> 
> It's also possible that you don't have the latest firmware on the 
> 9361-8i. If I recall correctly, they only added in the JBOD option in 
> the last firmware update
> 
> On Thursday, 10/09/2020 at 08:52 Miloslav Hůla wrote:
> 
>     Some controllers has direct option "pass through to OS" for a drive,
>     that's what I meant. I can't recall why we have chosen RAID-0
>     instead of
>     JBOD, there was some reason, but I hope there is no difference with
>     single drive.
> 
>     Thank you
>     Milo
> 
>     Dne 09.09.2020 v 15:51 Scott Q. napsal(a):
>      > The 9361-8i does support passthrough ( JBOD mode ). Make sure you
>     have
>      > the latest firmware.
>