[mythtv-users] Recording storage suggestions
briandlong at gmail.com
Thu May 24 12:59:15 UTC 2007
On 5/23/07, Phill Wiggin <alamar at gmail.com> wrote:
> I've convinced a few friends to use Myth (they now love it), and
> helped them decide on LVM. Now that Storage Groups are available, I
> can't recommend LVM for Myth. I lost a nearly full ~1TB LVM set
> because one drive decided to give up the ghost.
It sounds like you're saying LVM = RAID 0 (or concatenation). Of
course one drive will make the entire set go away; that's what
striping or concatenation gives you. :) If you use LVM on top of
RAID 1 or RAID 5, it's stable and has been for a fairly long time.
LVM allows easy concatenation of 2 drives, but this is dangerous
because you're basically doubling your chances of a single drive
failure taking out your entire LVM volume group. I would not discount
LVM based on RAID 0 or concatenation issues. If you want redundancy
in your storage system, eat the cost of a third drive and run RAID 5.
It won't be just as fast as RAID 0, but it's plenty fast for multiple
SD and/or HD recordings at once (as shown by many others on this
Just my $0.02.
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