Clone an existing NFS mount off to another server's NFS mount?
 

Hey guys, I'm in an awkward situation and need to find a good way to clone everything on one NFS share (OS running Sun 10), off to just a RHEL 5 NFS share. The problem here is that I can't just *stop* incoming data -- ever coming into the NFS mount on the Sun box, and it would be very hard to time it right so that I could rsync data off and know that everything is as current as it gets to essentially being live as possible.

I assume (correctly I hope) that there is a way to essentially just mirror the NFS data incoming on the one off to the NFS share available on the RHEL box? After some googling I couldn't find anything quite like what I think needs to happen. Teach me something new LQ! Thanks ahead of time.

This is the only solution I know of. http://www.storix.com/backup-managem...ckup-live-data

If you are running zfs then there may be a way too.

What sort of volume of "new" data are you talking about? Also, why are you transfering it?

You may find that once you've done the initial rsync then subsequent ones can be done on a regular cron basis. That way you're not having to resort to finding something that'll do true "real-time" across two different platforms.

If the reason for transfer is to eventually run your RHEL box as your live then rsync a few times and then take the "hit" of having to take your main server offline while you rsync and change over.

Thanks Jefro, I'll read more into that solution.

TenTenths - I don't have an exact number on the volume of new data incoming, but it is enough to make it awkward, and yes, it is to make the new NFS mount the active one. But taking a hit isn't optional here. I'm working on some other items to hopefully get it to the point where it becomes optional, but it isn't as it stands.

Thanks for the interest regardless guys.