[CentOS] lvm 1 drive fails whole vol data lost

Sat Dec 25 22:53:00 UTC 2010
William Warren <hescominsoon at emmanuelcomputerconsulting.com>

On 12/24/2010 7:57 AM, Markandeya wrote:
> Dear Friends of CentOS,
> I read a reply by John R Pierce, Re: [CentOS] LVM change disk
> December 04, 2010 01:30PM
> "do you realize that if any one of those 4 miscellaneous drives fails,
> you lose the whole volume?"
>
> Can anyone confirm this? and thank you to John above.
>
> 2: can you add(extend) a physical hdd with data to a LV without losing the data?
>
> 3: can you remove one hdd to add another of same size and file system
> but with different data?
>
> Thanks much. i am about to install and need to know my constraints.
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this is why RAID is still needed.  LVM  isn't a fault tolerant 
thing..RAID is still required.