ZFS boot with two disks

krad kraduk at googlemail.com
Tue Aug 3 11:49:40 UTC 2010

On 2 August 2010 20:06, Joshua Isom <jrisom at gmail.com> wrote:

> I'm wanting to set up a simple home file server and basic dev box with
> FreeBSD.  I have two 500GB disks that I want to put in it, one of which is
> empty after cleaning up.  I hope to use gpt and zfs for the disks, but I'm
> unsure about some parts.  A lot of the stuff referring to booting doesn't
> mention concating disks(I'll take my risks) for root.  I do want the second
> disk bootable as a fixit disk.
> For a fixit disk, is it better to use UFS or use ZFS for consistency?  If I
> use two pools, one for booting and the other for data, how much of the
> system needs to be on the booting pool?  I'm hoping to set up the disks
> before putting into the new computer, so will adding the second disk's space
> to the pool cause any problems?  Everything I've looked at talks about
> single disk booting or using a raid just for data storage, so this seems to
> be a lesser used approach.
> And finally, would it just be better to stick with tried and true UFS with
> the MBR or are the benefits good enough?
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If you are adament that you want to start slicing up your disks into
multiple pools you are probably better off ufs  for os and zfs for data as
you will have  far less hassle doing this. Having said that I have a two
pool system, on for os the rest for data and it works well. You might want
to look at installing the fbsd will the pcbsd installer as it makes the zfs
install fairly easy

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