Converting sysinstalled FreeBSD into ZFS-only server.

[Andriy Bakay]

> On Mon, Aug 09, 2010 at 04:22:42PM -0400, Andriy Bakay wrote:
>> 1. In your post you are using dedicated partition for swap. Did it provide
>> any advantages versus swap on ZFS volume?
> 
> For this one I think the answer is that it is very common to set dumpdev
> in /etc/rc.conf to your swap device.  Dumping core to a software raid
> is, uhm, suboptimal. :-)
> 

Yes, I know ZFS volume cannot be used as dumpdev (sorry I should put it 
in my question) and ZFS volume did not guaranteed to be contiguous 
(which could be performance consideration), but beside this, what else?

>> 2. You are suggesting to set 'vm_kmem_size' value to 150% of RAM. What
>> pros. and cons. against following formula:
>>
>> vm_kmem_size = RAM / 2
>> vfs.zfs.arc_max = vm_kmem_size - 512M
>>
>> 3. Could you be more verbose about your ZFS layout, what major advantages
>> it provide against for example the following:
>> http://wiki.freebsd.org/RootOnZFS/GPTZFSBoot. I found it very interesting
>> but I need more info.
> 
> Me 2.
> 
> Marco van Tol
>