[linux-lvm] mirror setup with LVM

[linux-lvm] mirror setup with LVM

[fabio_s]

Hi all,

I have a redhat 9 linux already installed and I'd like to add a second disk to
be used as mirror.

I assume it's easy to do this during linux installation.

Does someone know how to do that without destrying data on the first disk?

Thank you!


Fabio


    Device Boot    Start       End    Blocks   Id  System
/dev/hda1   *         1        13    104391   83  Linux
/dev/hda2            14        78    522112+  82  Linux swap
/dev/hda3            79     24321 194731897+  8e  Linux LVM
[root@host116 root]# df -k
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/Volume00/root_vol
                       2064208    159268   1800084   9% /
/dev/hda1               101089      9581     86289  10% /boot
/dev/Volume00/home_vol
                       1032088     32828    946832   4% /home
none                    123592         0    123592   0% /dev/shm
/dev/Volume00/usr_vol
                       1548144    838208    631296  58% /usr
/dev/Volume00/var_vol
                       1032088    177472    802188  19% /var
/dev/Volume00/varlog_vol
                       2064208     33628   1925724   2% /var/log
[root@host116 root]#

Re: [linux-lvm] mirror setup with LVM

[Luca Berra]

On Thu, Jan 22, 2004 at 01:02:35PM +0100, fabio_s@inwind.it wrote:
>Hi all,
>
>I have a redhat 9 linux already installed and I'd like to add a second disk to
>be used as mirror.
>
>I assume it's easy to do this during linux installation.
>
>Does someone know how to do that without destrying data on the first disk?
>
create a degraded mirror on the second disk,
then either
  add this to the vg and pvmove all lv there, then remove the
  standalone disk and raidhotadd it to the array.
or
  create a new vg on the mirror, copy all data, remove the first vg,
  raidhotadd the disk.

L.

Re: [linux-lvm] mirror setup with LVM

[Avijit Pathania]

Hello,

Is this something what you were looking for?
http://www.foulplay.org/ask.shtml#7.1

fabio_s@inwind.it wrote:

>Hi all,
>
>I have a redhat 9 linux already installed and I'd like to add a second disk to
>be used as mirror.
>
>I assume it's easy to do this during linux installation.
>
>Does someone know how to do that without destrying data on the first disk?
>
>Thank you!
>
>
>Fabio
>
>
>    Device Boot    Start       End    Blocks   Id  System
>/dev/hda1   *         1        13    104391   83  Linux
>/dev/hda2            14        78    522112+  82  Linux swap
>/dev/hda3            79     24321 194731897+  8e  Linux LVM
>[root@host116 root]# df -k
>Filesystem           1K-blocks      Used Available Use% Mounted on
>/dev/Volume00/root_vol
>                       2064208    159268   1800084   9% /
>/dev/hda1               101089      9581     86289  10% /boot
>/dev/Volume00/home_vol
>                       1032088     32828    946832   4% /home
>none                    123592         0    123592   0% /dev/shm
>/dev/Volume00/usr_vol
>                       1548144    838208    631296  58% /usr
>/dev/Volume00/var_vol
>                       1032088    177472    802188  19% /var
>/dev/Volume00/varlog_vol
>                       2064208     33628   1925724   2% /var/log
>[root@host116 root]#
>
>
>
>_______________________________________________
>linux-lvm mailing list
>linux-lvm@sistina.com
>http://lists.sistina.com/mailman/listinfo/linux-lvm
>read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>
>
>  
>