Extending your zfs pool with multiple devices

Joshua Boyd boydjd at jbip.net
Thu Sep 2 16:48:06 UTC 2010

You need an HP SAS expander card in the new box, and an HBA in your primary
box with external ports to hook it into.

Then the drives in the other box will show up as local drives on your
primary box.

You don't even need an operating system on the second box, it just needs
enough hardware in it to supply power to the SAS expander.

On Thu, Sep 2, 2010 at 9:22 AM, Michal <michal at sharescope.co.uk> wrote:

> I have a small problem that I am trying to work out a solution for. Imagine
> you create a NAS box. Fill a small server with 5 hard drives, zfs them with
> raidz or whatever, create your pools and then shear this to the network
> using samba. Simple NAS box for your network to put their files and they
> just connenct to \\nas1
> This box is now full, my problem is that I could create a 2nd NAS box and
> people use \\nas1 and \\nas2 but it's not very use friendly. Can I somehow
> build a 2nd box which is identicle, but extend my pools into nas2. I was
> thinking something like exporting the nas2 drives via iscsi and then nas1
> add's the drives to the pool...or something similar. I find that with any
> NAS whether its home build or shop bought you will eventually run out of
> space, and sure you can replace the HDD's with bigger ones but you will see
> run out of space, and having multiple locations, in my mind, is not very
> elegant. I cannot simply add more HDD's to the box as well as it's at full
> capacity
> Thanks
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Joshua Boyd

E-mail: boydjd at jbip.net


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