вт, 2 мар. 2021 г. в 13:52, James Page <james.p...@canonical.com>:

(Disclaimer: I have never tried to run Ceph on bcache in production,
and the test cluster was destroyed before reaching its first deep
scrub)

> b) turn off the sequential cutoff
>
> sequential_cutoff = 0
>
> This means that sequential writes will also always go to the cache device
> rather than the backing device

Could you please explain the exact mechanics of the sequential cutoff?
Does it only affect big sequential writes, or big sequential reads
too? I am asking because of the potential of deep scrubs being cached
instead of the "real" hot data.

-- 
Alexander E. Patrakov
CV: http://u.pc.cd/wT8otalK
_______________________________________________
ceph-users mailing list -- ceph-users@ceph.io
To unsubscribe send an email to ceph-users-le...@ceph.io

Reply via email to