On Fri, Jun 26, 2020 at 11:15:54AM -0400, Matthew Miller wrote:
> On Fri, Jun 26, 2020 at 11:13:39AM -0400, Josef Bacik wrote:
> > Not Fedora land, but Facebook installs it on all of our root
> > devices, so millions of machines. We've done this for 5 years.
> > It's worked out very well. Thanks,
> Josef, I'd love to hear your comments on any
differences between that
> situation and the typical laptop-user case for Fedora desktop systems.
> Anything we should consider?
And, perhaps more crucially, what subset of btrfs features are in use.
(Plus perhaps the underlying hardware; I suspect the server-class
hardware facebook uses is a grade above the typical desktop..)
Actually the opposite. The facebook hardware is built at scale on
nearly the cheapest it can be. That said, they have a different fail
scale than personal hardware.. they are ok if entire racks or areas in
a DC blow themselves up because the data is spread out. That is
different from a laptop where the failure means loss of everything
since the last backup (aka never). So what is stored on the systems
is a different usecase and how it is considered safe is different.
That said they have probably put in a lot more on scale testing of the
filesystem than Fedora could do.
[this is neither an endorsement or hatred of the proposal.. ]