Linux Question *New LVM in RH9*

[DJ-phYre]

OK first off, the way I understand how LVM works:

LVM is basically a "software-type raid", where you take 2 physical drives and you group them together where they act as 1 drive alone.

This will be a useful feature to me for my new linux machine I am building.

I have a 120GB drive with data on it, mp3s and such... I just ordered another 160GB drive. So I have 2 drives but do not want 2 mounts on my linux box. I want to combine them and create one mount (ex. /archvie).

To do this I use the GUI install and the LVM feature with Disk Druid, or whatever partition manager I choose. When I combine these drives. Will they have to be formatted? I do not want to loose all my data off my 120GB. I want to just add the 160GB on the the end of that. Is this possible, or is there a way to do it?

Please people who know about this shed some light upon me.

 

[Zedric]

After you add these drives together, you must create partitions on the new virtual drive and then format it/them. Your old data will not be kept. Plus if you make a RAID 0 array your total size will be 240GB because the disks are unequal i size.

This is true if LVM is normal software RAID, which I take it is.

 

[Corvette]

Now that's what I call "doubling the pleasure" or the hard drive anyway (And that can be done through Disk Druid from text mode I think)