Am 06.03.2012 19:47, schrieb Michael Mol: > On Tue, Mar 6, 2012 at 1:34 PM, Stroller <[email protected]> > 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? >>
Nitpicking: No need for a new volume group, just a new PV. Using a
separate VG makes migration harder.
>> 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.
>
>
I guess the OP is running the JBOD nature ("linear" in LVM terms). Not
that it matters, really.
BTW: Am I the only one seeing a good opportunity for creating a backup
using the old disks? LVM snapshots would be perfect here, as long as the
old disks can be kept running.
Regards,
Florian Philipp
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