On 2017-12-20 11:53, Andrei Borzenkov wrote:
19.12.2017 22:47, Chris Murphy пишет:
BTW, doesn't SuSE use btrfs by default? Would you expect everyone using
this distro to research every component used?
As far as I'm aware, only Btrfs single device stuff is "supported".
The multiple device stuff is definitely not supported on openSUSE, but
I have no idea to what degree they support it with enterprise license,
no doubt that support must come with caveats.
I was rather surprised seeing RAID1 and RAID10 listed as supported in
SLES 12.x release notes, especially as there is no support for
multi-device btrfs in YaST and hence no way to even install on such
filesystem.
That's the beauty of it all though, you don't need to install on such a
setup directly like you would need to with hardware RAID, you can
install in single-device mode and then convert the system on-line to use
multiple devices, and that will (usually) be faster than a direct
install if you're using replication (unless you're using RAID10 and have
a _lot_ of disks).
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