[mythtv-users] LVM2 Striping Suggestions...

[Michael MacLeod]

If these are new drives, I suspect that the lifetime of the drive is longer
than the lifetime of his currect mythtv install. Maybe if you've been
recycling the same drives through systems for the last ten years you can
expect them to die on you, but seriously, two new drives are going to last a
while.

RAID5 for a bunch of television shows is overkill. This isn't mission
critical data here, and the disks in all likelyhood are going to last at
least a few years. Maybe I'm just lucky, but I've never had a drive fail
inside a desktop system (I've had a laptop drive fail when the laptop failed
to go to sleep when the lid closed and then went for a journey on the
subway, but those are different circumstances). I've been running four of my
drives for over five years now, and they still work fine. Although, at four
years, I did start mirroring the data on another set of drives.

On 9/23/06, Eric Ladner <eric.ladner at gmail.com> wrote:
>
> On 9/23/06, Robin Smith <1canuck2 at gmail.com> wrote:
> > Yikes! Having been burned by too many dead hard drives in my life, I
> > would never consider this option... you are essentially double your
> > chances of complete data loss.
>
> I agree completely.  Either buy another drive and do RAID5, or mirror
> the pair you have.  It might not happen today or tomorrow, but
> eventually, you'll loose 500GB of data when ONE of your 250GB drives
> fail.
>
> As for throughput, consider that the average show (my average anyway -
> I turn my settings up for better quality) is about 2.5 Gig.  That
> works out to about 650K per second.  I'd figure you'd have to have
> about 8 to 10 streams running at the same time before you'd start to
> see problems.
>
> My 0.02
> --
> Eric Ladner
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