RE: Amatuar LVM creation and activation

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> -----Original Message-----
> From: [email protected] 
> [mailto:[email protected]] On Behalf Of Jim Cornette
> Sent: Thursday, January 05, 2006 11:23 PM
> To: For users of Fedora Core releases
> Subject: Amatuar LVM creation and activation
> 
> Since there were discussions regarding problems with LVMs, I 
> decided to create one on a USB drive. I was able to create, 
> format and activate it using system-config-lvm. Anyway, the 
> order for the commands to activate, find out what to mount 
> the volume as is a bit out of order than what I posted 
> before. My shell commands are posted below. Test data was 
> loaded after system-config-lvm  selected the volume name and 
> lvm parameters, drive was formatted and mounted on selected 
> mountpoint. After rebooting the below steps were needed.
> 
> Step 1: - activate all lvm partitions.
>  vgchange -ay
>   1 logical volume(s) in volume group "vgpicts" now active

Personally something needs to be added in /etc/sysconfig/lvm or
some such thing to have a list of volumes to activate, when
things are being used on a san with many volumes, most people don't
want to activate all of the volumes on any given machine, and
I don't know that you want to zone off machines so that it only
sees a few, especially if you want to be able to quickly setup
a second machine take over the job of down machine.

> 
> Step 2: - scan to find out what the volume is called so it 
> can b mounted, pictures was what I decided to go with.
> [[email protected] ~]# lvscan
>   ACTIVE            '/dev/vgpicts/pictures' [37.00 GB] inherit
> 
> Step 3: - take the information from the output of lvscan and 
> use it to mount it on your desired location. I picked 
> /home/jim/lvm-test [[email protected] ~]# mount 
> /dev/vgpicts/pictures /home/jim/lvm-test
> 
> Step 4: change to where lvm was mounted, check for data 
> contained on lvm. Information confirms lvm is accessible on reboot.
>  ~]# cd /home/jim/lvm-test
> lvm-test]# ls
> jim  lost+found
> [ lvm-test]# cd jim
>  jim]# ls
> nomad-firmware  pe-build  pfd  realplayer-rpm
> 
> To recover data from systems previously on LVM, I hope this helps out.
> 
> Jim


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