[mythtv-users] LVM RAID 5 partition schemes

Milan Andric mandric at gmail.com
Wed Apr 6 22:19:02 UTC 2005


Apoligies if this is noise.

On Apr 6, 2005 2:56 PM, Milan Andric <mandric at gmail.com> wrote:
> On Apr 6, 2005 2:11 PM, dean collins <dean at collins.net.pr> wrote:
> > >>You also can't 'add drives as time goes by' to a raid 5.
> > >>
> > >>
> > >unless i use the 'missing' trick?
> > >
> > >
> > nope.
> > The only way to add drives is an unsupported program called raidreconf
> > or using the (supported) EVMS solution.
> > Sean's idea of lots of mini-raid5'ed partitions is very interesting
> > though. I haven't thought it through. I think you could do it just using
> >
> > the lvm 'move blocks' approach (ie without needing to repeatedly
> > shrink/grow the filesystem - just one growfs at the end).
> > I'd rate it as lvm/md experts only (which isn't that hard TBH)
> >
> 
> Newbie is getting a fuzzy signal here.  Can someone please confirm that
> using RAID 5 and LVM one cannot grow a filesystem by adding
> a new disk/partition?
> 

I do mean software raid (md).  Reading the archives I've come to understand
that hardware (real or fake) raid 5 is a waste of time for most mythtv
applications.

-- 
Milan


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