1GB isn't enough for a real system. 2GB is a bare minimum. If you're
going to use dedup, plan on a *lot* more. I think 4 or 8 GB are good
for a typical desktop or home NAS setup. With FreeBSD you may be able
to get away with less. (Probably, in fact.)
Btw, instead of RAIDZ2, I'd recommend simply using stripe of mirrors.
You'll have better performance, and good resilience against errors. And
you can grow later as you need to by just adding additional drive pairs.
-- Garrett
On Fri, 2010-07-16 at 10:24 -0700, Michael Johnson wrote:
> I'm currently planning on running FreeBSD with ZFS, but I wanted to
> double-check
> how much memory I'd need for it to be stable. The ZFS wiki currently says
> you
> can go as low as 1 GB, but recommends 2 GB; however, elsewhere I've seen
> someone
> claim that you need at least 4 GB. Does anyone here know how much RAM
> FreeBSD
> would need in this case?
>
> Likewise, how much RAM does OpenSolaris need for stability when running ZFS?
> How about other OpenSolaris-based OSs, like NexentaStor? (My searching
> found
> that OpenSolaris recommended at least 1 GB, while NexentaStor said 2 GB was
> okay, 4 GB was better. I'd be interested in hearing your input, though.)
>
> If it matters, I'm currently planning on RAID-Z2 with 4x500GB consumer-grade
> SATA drives. (I know that's not a very efficient configuration, but I'd
> really
> like the redundancy of RAID-Z2 and I just don't need more than 1 TB of
> available
> storage right now, or for the next several years.) This is on an AMD64
> system,
> and the OS in question will be running inside of VirtualBox, with raw access
> to
> the drives.
>
> Thanks,
> Michael
>
>
>
> _______________________________________________
> zfs-discuss mailing list
> zfs-discuss@opensolaris.org
> http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
>
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