[mythtv-users] Question on software RAID

Jeff jeff at intersystems.com
Mon Jan 26 09:48:01 EST 2004


At 09:52 PM 1/26/2004 +1300, you wrote:
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>On Mon, 26 Jan 2004, Peter Loron wrote:
>
> > Once I construct a software RAID-5 under Linux, is it possible to later
> > expand the array with more disks without erasing the contents? I'm
> > trying to plan for my Myth box...
>
>Nope.
>
>But, you could use a LVM on top of the RAID-5 set, and when you want more
>disk added, create another RAID-5 set and add it to the LVM.
>
>- --
>David Zanetti           |  (__)
>#include <geek/unix.h>  |  ( oo    Mooooooo
>http://hairy.geek.nz/   |  /(_O ./

Why use Raid-5? Myth doesn't really need the I/O bandwidth
you get from striping and you said its software Raid so you're
going to up the CPU load. Instead you could just use the LVM
to create a large volume set which is easier to extend.




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