Re: [gentoo-user] LVM: Removing 3 disks and replacing with 1

[Michael Mol <mikemol@gmail.com>]

On Tue, Mar 6, 2012 at 1:34 PM, Stroller <stroller@stellar.eclipse.co.uk> wrote:
>
> On 6 March 2012, at 17:25, Neil Bothwick wrote:
>
>> On Tue, 6 Mar 2012 16:32:56 +0000, Stroller wrote:
>>
>>>> … I initially want to replace the 3x1TBs with a single 3TB drive but
>>>> i've never removed/replaced a drive in an LVM setup before. I think I
>>>> understand how it is done, using pvmove …
>>>
>>> Or you could just format and mount the new drive and use `cp`.
>>
>> Thereby instantly removing the benefits of LVM and making it almost
>> impossible to extend the space by adding another drive when needed.
>
> Uh, why not create a new volume group with the new disk?
>
> OP says he wants to *replace* the old disks.

Makes a certain amount of sense. But it sounds like he found a tool
(pvmove) to do what he needs to do, and trying to do more on top
complicates things beyond what they need to be.


>
> Admittedly, I don't like the RAID0 nature of LVM, so my question probably did reflect that cynicism.

I typically put LVM on top of RAID.


-- 
:wq