[Cialug] ubuntu disk storage

[chris at bynw.com]

I did explain that if we moved the /home directory to the LVM space 
there could be a loss if one of the physical drives in the LVM space 
died. It wasn't a concern. So I followed the instructions here: 
https://techsparx.com/linux/disks/ubuntu-move-home.html to move /home to 
the "2nd drive" aka the LVM space.

But since the weekend has passed he's changed his mind. And wants the 
LVM space to be a RAID so the /home directory doesn't die without some 
form of redundancy.

I'm not sure I can move the /home back to the main drive or change the 
LVM space to a RAID without totally redoing things on the LVM but that 
would also mean I have to move the /home directory back to the primary 
drive. And I cant figure out how to get that done.

-Chris

On 2022-02-18 15:11, L. V. Lammert wrote:
> On Fri, 18 Feb 2022 chris at bynw.com wrote:
> 
>> Actually Dave's response and the others have been very helpful on this 
>> little learning project. Thank you so much.
>> Next question ..... can I move the /home directory to this LVM space??
>> 
> Sure, ... but remember, there is no redundance with LVM - a LVM is
> "logical", and relies on the underlying "physical" layer to provide
> reduncancy a la RAID.
> 
> All LVM provides is the ability to span multiple physical partitions 
> into
> a single logical partition, .. if one drive dies, everything is toast
> unless the physical volumes are part of a RAID configuration.
> 
> That is the main reason I prefer RAID6 over LVM - much easier to 
> extend,
> and much simpler to manage with mdadm.
> 
> 	Lee
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