snap shot of live system?

Anne Moore diabeticithink at yahoo.com
Mon Sep 10 17:03:54 UTC 2007


Thanks!

Is it possible to create LVM's on already configured red Hat machines
without hurting any data?

Thanks

Anne 

-----Original Message-----
From: redhat-list-bounces at redhat.com [mailto:redhat-list-bounces at redhat.com]
On Behalf Of Romeo Theriault
Sent: Sunday, September 09, 2007 8:29 PM
To: General Red Hat Linux discussion list
Subject: Re: snap shot of live system?

On 9/9/07, Anne Moore <diabeticithink at yahoo.com> wrote:
>
> Hi All, does anyone know if there is a Red Hat command/backup solution 
> that allows taking a snap shot of the system while it's mounted and 
> running in multi-user mode? (It would be equivalent to the fssnap 
> Solaris 10 command).
>
> Thank you!
>
> Anne
> --
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Yes, but you need to be using LVM (Logical Volume Management) on the mount
that you want to take a snapshot of. A quick way to tell if your using LVM
is to type `lvs` at the command line. If you are using LVM it will show you
somethin similiar to this.

  LV       VG         Attr   LSize  Origin Snap%  Move Log Copy%
  LogVol00 VolGroup00 -wi-ao 31.78G
  LogVol01 VolGroup00 -wi-ao  1.94G

For more info take a look at this webpage:

http://www.redhat.com/magazine/009jul05/features/lvm2/


--
Romeo Theriault
System Administrator
University of Maine at Fort Kent
Ph#: 207-834-7815
Em@: romeo.theriault at maine.edu
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