[mythtv-users] question about RAID

Steve Adeff adeffs at gmail.com
Tue Jan 10 14:54:33 UTC 2006


On Tuesday 10 January 2006 02:33, chris at cpr.homelinux.net wrote:
> On Mon, Jan 09, 2006 at 08:53:31PM -0500, Steve Adeff wrote:
> > If I can add drives in after initial creation, I could add in more of my
> > 320gig drives I have with other media on them, increase write speed a bit
> > and not worry about losing the other data as well.
>
> You can't increase the number of active devices in a RAID-5 (mdadm)
> array because the distribution of data and parity is set when the
> array is first created.  To increase the capacity of the array you
> would need to increase the capacity of all of the constituent
> devices, "grow" the array to take up the extra space and then resize
> the hosted filesystem.

Yea, I read this later and made the same discovery, so I'm going to go ahead 
and start with a 3 disk RAID 5 array which should give me some growing space. 
If I ever need more for my recording directory I'll just buy new drives, 
build a new array, move files over, etc.

-- 
thanks,
STeve


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