gmirror + gjournal setup question

[Volodymyr Kostyrko]

Gabriel Lavoie wrote:
> Hello,
>      I would like to know what is the best way to setup gmirror + gjournal,
> on a slice level on two hard drives. Do I set up a mirrored journal
> partition + mirrored journalized slice (gmirror on top of gjournal) on which
> I create my labels with bsdlabels (will create /dev/mirror/name.journal,
> /dev/mirror/name.journala, /dev/mirror/name.journalb). Or I setup a
> journalized slice on both hard drive and then I mirror /dev/ad0s1.journal
> and /dev/ad1s1.journal (gjournal on top of gmirror)? I have hard time to
> figure out what would be the best, if I want to avoid mirror rebuild on
> power failure and I want fast fsck. I'd also like to make this setup on my
> 1st slice (which contains the root filesystem).

man gjournal:
...
      When gjournal is configured on top of gmirror(8) or graid3(8) 
providers,
      it also keeps them in a consistent state, thus automatic 
synchronization
      on power failure or system crash may be disabled on those providers.
...

I think journaling a mirrored partition can be much better.

-- 
Sphinx of black quartz judge my vow.