geom_raid5 inclusion in HEAD?

[Ivan Voras]

On 07/11/2007, Arne Wörner <arne_woerner at yahoo.com> wrote:

> graid5 puts write requests for about kern.geom.raid5.wdt seconds (but not less
> than 1-2 seconds) into the write cache (if there is enough space left in
> graid5's write cache)... I would guess that this behaviour is pretty
> incompatible with soft-updates with power outage...

Can this cache be disabled?

> Then there still is the write cache of the hard discs (I dont know how long it
> waits, but that time would come in addition to graid5's delay)...
>
> Maybe gjournal could help, because graid5 honors the BIO_FLUSH, but that is
> untested...

Yes, AFAIK this would work.