[linux-lvm] Can I dd one disc of a lv

Rickard Olsson richie at webhackande.se
Thu Nov 6 07:00:02 UTC 2003

Tobias Wagener wrote:

> After I switched the new disc to the "hdX" of the old one? 

Yes. You can remove the old disk after the dd_rescue is done.

> Or in which way knows the lvm to use the new disc?

I believe vgcfgrestore does that. If you don't want to (or can't) move 
the disks around, check the -o option.

If you want to, you can use the LVM2 pvcreate instead, to create the new 
disk with the PVUUID from the old one. pvdisplay /dev/olddisk tells you 
the ID.

    / Rickard Olsson,IT-Konsult/
   / Telefon: +46 70 635 01 42/
  / http://www.webhackande.se/

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