[mythtv-users] Wishlist feature for adding a hard drive

Dag Nygren dag at newtech.fi
Thu Oct 5 19:33:08 UTC 2006


> "Todd Ignasiak" <ignasiak at gmail.com>  wrote:

> You're right, RAID5 is a great way to go, but  adding multiple
> independent storage units has a few advantages:
> 
> - The drives don't need to be all the same size.   WIth the ever
> increasing size of hard drives, I seem to continually upgrade and have
> disks of many different sizes.  I have a bunch of 120GB, a couple
> 250GB, a 320GB and a couple 400GB.    I can throw a 400 and 320GB disk
> on my Myth backend, and have a good deal of space.
> 
> - Related to the above,  as the 'sweet spot' of disk capacity goes up,
> I can just buy the new larger disk and slap it in, rather than
> replacing all the disks with the new larger size, and rebuilding the
> whole array (those 750GB drives are pricey now..  but they'll come
> down in price soon enough).
> 
> - With single disks, I use all my storage.  I don't need have the
> parity overhead, as in RAID5.   Of course, I don't get the data
> protection that RAID5 offers.  But, for me TV programs don't merit
> that level of protection.   Independent disks give a step up in
> reliability over striped disks.. if I lose a disk, I only lose the
> programs on that disk, not my entire volume.
> 
> - Even when using RAID5, your capacity is not infinite.  You might
> want to use this feature to point MythTV at two RAID arrays, or NAS
> units.
> 
> 
> Just my two cents..  I think multiple storage locations for MythTV is
> a fantastic improvement.   I look forward to its inclusion in a future
> version.

But Linux LVM is standard in all distis nowadays and give you
all of the above without any extra code in Myth???

Best
Dag




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