In <[EMAIL PROTECTED]>, Vladimir Terziev <[EMAIL PROTECTED]> typed:
> i have a machine running FreeBSD 5.4 . It has 2 HDDs. Recently the
> non-root HDD failed and lost all the data on it. Since the machine is working
> 24/7 i want to mirror its root disk (this one with the OS on it) in order to
> prevent a severe downtime and data loss.
>
> Is there a safe way to do the above using gmirror ?
Yes. I started doing it on FreeBSD 5.5. It's pretty simple: shut down
to single user. Create a mirror with your root disk in it. Edit
/etc/hosts to change the device name from ad* to
mirror/*. Reboot. Once you're back up, add the second disk to the
mirror. If you want exact instructions, consult google. The tricky
part is creating the initial mirror on a mounted file system - you
have to toggle a sysctl (I think that's what it was) to do that. Some
directions include that; others recommend you boot on a recovery CD to
create the mirror initially.
BTW, this probably should have gone to -questions.
<mike
--
Mike Meyer <[EMAIL PROTECTED]> http://www.mired.org/consulting.html
Independent Network/Unix/Perforce consultant, email for more information.
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