[linux-lvm] Using LVM Mirroring to obtain a usable backup

[Ambrogio De Lorenzo]

Il giorno mer, 16/09/2009 alle 22.03 +0200, André Gillibert ha scritto:

> > snapshot is not a good choise for me. I want to have an identical copy
> > (like dd) on another identical disk, for fast recovery in case of
> > failure.
> > 
> 
> Then, create a short-lived snapshot, dd the snapshot to the other disk, and then, remove the snapshot.

Hm... 
Another no good approach.
In this way I loose everything appens to disk between the moment in
which I take the snap and the time in which dd end. I think at least 6/7
hours.

The good and most secure way is to mirror disks. In this way all blocks
are replicated, all I/O are replicated and disks are syncronized when I
shutdown the OS.

I will shutdown in a few moments and start an offline dd. Is the last
chance.
I hope it end fast

Bye
 Ambrogio