zfs on gmirror slice

[Thomas Backman]

On Sep 1, 2009, at 6:04 PM, Maciej Jan Broniarz wrote:

> 2009/9/1 Thomas Backman <serenity at exscape.org>:
>> On Sep 1, 2009, at 4:04 PM, Maciej Jan Broniarz wrote:
>>
>>
>> I'm not familiar with gmirror, but it'd be a way better idea to  
>> mirror it
>> using ZFS if possible - that way you get self-healing and stuff  
>> like that,
>> which you won't if ZFS doesn't have a mirror/RAIDZ setup, but only  
>> sees a
>> single slice.
>>
>
> I would like to do so. I have to disks (ad4 and ad5). Is it possible
> to create two slices on both disks (eg ad4s1 and ad4s2 for ad4).
> Then to create gmirror on ad4s1, install freebsd on it so it would
> boot from it. Then, after having my system running to create zfs
> mirror from ad4s2 and ad5s2?
Why not go ZFS all the way? ZFS on root is well supported these days  
(well, not by sysinstall, but it works great if you do it manually) -  
you don't even need UFS /boot anymore.
Again, not familiar with gmirror, but my guess (that will be corrected  
or confirmed by someone ;) is that your way would work too.

Regards,
Thomas