On 19/08/2023 11:31, Dimitry Andric wrote:
On 19 Aug 2023, at 09:36, Graham Perrin <grahamper...@gmail.com> wrote:
…
<https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=271945#c0> no ZIL; I never
used the feature.
The ZIL always exists, but it can be stored on a separate device for
performance reasons. See zpoolconcepts(7), the Intent Log section:
By default, the intent log is allocated from blocks within the main pool.
However, it might be possible to get better performance using separate
intent log devices such as NVRAM or a dedicated disk. For example:
# zpool create pool sda sdb log sdc
-Dimitry
Thanks!
I looked at the page umpteen times, that part never sunk in. Now I know.
<https://openzfs.github.io/openzfs-docs/man/master/7/zpoolconcepts.7.html#Intent_Log>
