On Tue, 2002-11-12 at 18:22, Gowans, Chuck wrote:s.
> The IPLs fail at assorted points in the boot process. We are thinking that
> we now may have to shut down the guests in order to get reliable backups.
>
That sounds a lot more drastic a failure than I would expect if the dump
is being done cleanly. The way I dump my live file systems is a little
zany but it works for me
I hot add a mirror volume to the raid
I want for a rebuild to finish
I hot remove it
at that point its close enough that the ext3 journalling log replay
should fix it up, and if not fsck will have almost no work to do. I
guess the right approach if you run LVM would be to make a snapshot and
back up the snapshot.
I don't thinkwhat you are doing is impossible, and its a rather
important item to get right for a 24x7 OS. In the x86 world drbd seems
to be the popular approach (basically raid over network)
Alan
