ZFS melting under postgres...

[Ivan Voras]

On 16/12/2007, Dag-Erling Smørgrav <des at des.no> wrote:
> Ivan Voras <ivoras at freebsd.org> writes:
> > These are all "normal" CompactFlash cards, for which the widely
> > available size seems to be 16 GB max, right?
>
> So?  That's more than enough for a ZFS intent log (as a rule of thumb,
> the ZIL should be half the size of the server's RAM).

Why do you consider ZIL to be a good candidate for putting on a SSD?
Isn't it sequential-access mostly?

> > Did you (or anyone) deploy CF drives for production servers?
>
> My router (and DNS, NTP and DHCP server) is a net4801 with a 1 GB CF
> chip.

Ok, these are probably embedded appliances that don't get much storage
traffic. I was thinking about different kind of servers - database,
web or file servers.