Re: Bcache on btrfs: the perfect setup or the perfect storm?

[Kai Krakow <hurikhan77@gmail.com>]

arnaud gaboury <arnaud.gaboury@gmail.com> schrieb:

> I plan to setup Bcache on  Btrfs SSD/HD caching/backing device. The
> box will be a server, but not a production one.
> 
> I know this scheme is not recommended and can be a cause of filesystem
> corruption. But as I like living on the edge, I want to give a try,
> with a tight backup policy.
> 
> Any advice? Any settings that could be worth to avoid future drama?

See my recommendations about partitioning here I just posted:
http://permalink.gmane.org/gmane.linux.kernel.bcache.devel/2865

Take care of the warnings about trimming/enabling discard. I'd at least test 
it if you want to use it before trusting your kitty to it. ;-)

BTW: I'm planning on a similar system tho the plans may well be 1 or 2 years 
in the future and the system is planned to be based off bcache/btrfs. It 
should become a production container-VM host. We'll see. Fallback plan is to 
use a battery-backed RAID controller with CacheCade (SSDs as volume cache).

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