GEOM's RAID level support

Pawel Jakub Dawidek pjd at FreeBSD.org
Thu Oct 6 13:16:25 PDT 2005


On Thu, Oct 06, 2005 at 01:08:02PM -0700, Danny Howard wrote:
+> On Thu, Oct 06, 2005 at 09:01:36PM +0200, Dag-Erling Sm?rgrav wrote:
+> > Joshua Bell <josh at oplink.net> writes:
+> > > I am sorry if this is covered in areas I was unable to view.  But,
+> > > from what it looks like GEOM is limited to 0/1 raid levels.
+> > > Basically, what I am needing is a raid5 configuration from
+> > > bootstrap.
+> > 
+> > You can't boot from a RAID 5 volume without hardware support.
+> 
+> Has anyone a recipe for a RAID1,0 bootstrap? :)

Forget it. Everything which splits the data across disks will not work.
With software RAID you can operate on disks, slices, partitions, etc.
no limits here. I'd suggest creating small RAID1 on top of small
partitions for the root file system (or at least for /boot/ directory,
which is minimum).

-- 
Pawel Jakub Dawidek                       http://www.wheel.pl
pjd at FreeBSD.org                           http://www.FreeBSD.org
FreeBSD committer                         Am I Evil? Yes, I Am!
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