On Feb 26, 2013, at 12:33 AM, Tiernan OToole <lsmart...@gmail.com> 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)

Consider using different policies for different data. For traditional file 
systems, you
had relatively few policy options: readonly, nosuid, quota, etc. With ZFS, 
dedup and
compression are also policy options. In your case, dedup for your media is not 
to be a good policy, but dedup for your backups could be a win (unless you're 
something that already doesn't backup duplicate data -- eg most backup 
A way to approach this is to think of your directory structure and create file 
to match the policies. For example:
        /home/richard = compressed (default top-level, since properties are 
        /home/richard/media = compressed
        /home/richard/backup = compressed + dedup

 -- richard

> 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.
> On Mon, Feb 25, 2013 at 6:11 PM, Tim Cook <t...@cook.ms> wrote:
> On Mon, Feb 25, 2013 at 7:57 AM, Volker A. Brandt <v...@bb-c.de> wrote:
> Tim Cook writes:
> > > I need something that will allow me to share files over SMB (3 if
> > > possible), NFS, AFP (for Time Machine) and iSCSI. Ideally, i would
> > > like something i can manage "easily" and something that works with
> > > the Dell...
> >
> > All of them should provide the basic functionality you're looking
> > for.
> >  None of them will provide SMB3 (at all) or AFP (without a third
> > party package).
> FreeNAS has AFP built-in, including a Time Machine discovery method.
> The latest FreeNAS is still based on Samba 3.x, but they are aware
> of 4.x and will probably integrate it at some point in the future.
> Then you should have SMB3.  I don't know how far along they are...
> Best regards -- Volker
> FreeNAS comes with a package pre-installed to add AFP support.  There is no 
> native AFP support in FreeBSD and by association FreeNAS.  
> --Tim
> -- 
> Tiernan O'Toole
> blog.lotas-smartman.net
> www.geekphotographer.com
> www.tiernanotoole.ie
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