[mythtv-users] Adding a hard drive, LVM or RAID0

[Andrew Close]

On 5/19/05, Ryan Steffes <rbsteffes at gmail.com> wrote:
> I'm currently running fairly close to keeping my hard drive at maximum
> capacity.  I've started very seriously considering adding another
> 160GB disk to supplement the space, but I'm a bit anxious about my
> options for growing the disk without losing the 180 gigs I've got
> sitting there now.  I'm pretty sure my WAF would go to dang near zero
> if I lost all her stored Gilmore Girls and Judging Amy; the WAF for
> the mythtv box wouldn't be that good either.
> 
> After searching through the archives, it looks like my main two
> options are converting to RAID 0 or using LVM.  I have a general idea
> of what each does, but I don't really know much about either.  Does
> anyone have suggestions about the best way to go about this, and which
> may be easier?  I've got a Mandrake 10 system, if that makes a
> difference.
> 
> Oddly, while I'm more familiar with RAID in concept, it seems LVM may
> be easier to convert to.
> 
> Here's my understanding of what I'd need to do for LVM, which seems
> straight forward:
> 
> LVM
> 1) Install LVM tools (very likely they are already available through urpmi)
> 2) Create a physical volume on the new hard drive
> 3) Create a volume group on the new hard drive
> 4) Create a logical volume on the new hard drive
> 5) Mount the new hard drive, copy the data from my video partition over
> 6) Unmount both the new hard drive and my old video partition, rename
> the logical partition to be the same as my old partition
> 6b) At this point, it's essentially the same as if I had just added
> the hard drive and copied the stuff over
> 7) Create a physical volume in my old video partition
> 8) Add the physical volume to the new volume group
> 

i know there are ~15 responses in this thread, but i feel obligated to
point out: http://www.knoppmythwiki.org/index.php?page=LvmHowTo

hopefully it will help someone who hasn't a clue. ;)  it helped me...