RHEL to FreeBSD file server

[Mikael Fridh]

On Thu, Nov 15, 2012 at 1:18 AM, John <jwd at freebsd.org> wrote:

> ----- Julian Elischer's Original Message -----
> > On 11/13/12 1:19 PM, Jason Keltz wrote:
> > >On 11/13/2012 12:41 PM, Bob Friesenhahn wrote:
> > >>On Mon, 12 Nov 2012, kpneal at pobox.com wrote:
> > >>>
> > >>>With your setup of 11 mirrors you have a good mixture of read
> > >>>and write
> > >>>performance, but you've compromised on the safety. The reason
> > >>>that RAID 6
>
> ...
>
> > >By the way - on another note - what do you or other list members
> > >think of the new Intel SSD DC S3700 as ZIL? Sounds very promising
> > >when it's finally available.  I spent a lot of time researching
> > >ZILs today, and one thing I can say is that I have a major
> > >headache now because of it!!
> >
> > ZIL is best served by battery backed up ram or something.. it's tiny
> > and not a really good fit an SSD (maybe just  a partition) L2ARC on
> > the other hand is a really good use for SSD.
>
> Well, since you brought the subject up :-)
>
> Do you have any recommendations for an NVRAM unit usable with Freebsd?
>

I've always had my eyes on something like this for ZIL but never had the
need to explore it yet: http://www.ddrdrive.com/
Most recommendations I've seen have also been around mirrored 15krpm disks
of some sort or even a cheaper battery-backed raid controller in front of
decent disks. for zil it would just need a tiny bit of RAM anyway.