Thanks again lads. I will take all that info into advice, and will join
that new group also!

Thanks again!


On Tue, Feb 26, 2013 at 8:44 AM, Tim Cook <> wrote:

> On Mon, Feb 25, 2013 at 10:33 PM, Tiernan OToole <>wrote:
>> Thanks all! I will check out FreeNAS and see what it can do... I will
>> also check my RAID Card and see if it can work with JBOD... fingers
>> crossed... The machine has a couple internal SATA ports (think there are 2,
>> could be 4) so i was thinking of using those for boot disks and SSDs
>> later...
>> As a follow up question: Data Deduplication: The machine, to start, will
>> have about 5Gb  RAM. I read somewhere that 20TB storage would require about
>> 8GB RAM, depending on block size... Since i dont know block sizes, yet (i
>> store a mix of VMs, TV Shows, Movies and backups on the NAS) I am not sure
>> how much memory i will need (my estimate is 10TB RAW (8TB usable?) in a
>> ZRAID1 pool, and then 3TB RAW in a striped pool). If i dont have enough
>> memory now, can i enable DeDupe at a later stage when i add memory? Also,
>> if i pick FreeBSD now, and want to move to, say, Nexenta, is that possible?
>> Assuming the drives are just JBOD drives (to be confirmed) could they just
>> get imported?
>> Thanks.
> Yes, you can move between FreeBSD and Illumos based distros as long as you
> are at a compatible zpool version (which they currently are).  I'd avoid
> deduplication unless you absolutely need it... it's still a bit of a
> kludge.  Stick to compression and your world will be a much happier place.
> --Tim

Tiernan O'Toole
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