RE: How to mirror or Replicate a primary server's data toasecondarymachine

[Kent Walker <walkerk uchastings edu>]

I concur with Tobias - use rsync.  There's some examples of rsync over ssh at

http://www.oreilly.com/catalog/linuxsvrhack/chapter/

Synchronizing a running database is more complex.  You can dump the 
database, transfer the dump file via rsync, then rebuild the database on 
the understudy server.

Kent

At 10:23 AM 4/14/2005, Tobias Speckbacher wrote:


> > -----Original Message-----
> > From: taroon-list-bounces redhat com
> > [mailto:taroon-list-bounces redhat com]On Behalf Of Tobias Speckbacher
> > Sent: Thursday, April 14, 2005 10:20 AM
> > To: Gary Mansell ricardo com; Discussion of Red Hat Enterprise Linux 3
> > (Taroon); nahant-list redhat com; linux-lvm redhat com;
> > taroon-list redhat com; linux-poweredge dell com
> > Subject: RE: How to mirror or Replicate a primary server's data
> > toasecondarymachine
> >
> >
> >
> > To facilitate automatic failover you could take a look at
> > heartbeat which is part of the Linux-HA project
> > http://www.linux-ha.org/download/
>
> Err..., what i really wanted to say is to check out rsync to synchronize 
> data across
> the 2 systems.  you can run it over ssh,rsh,etc. or if you prefer you can 
> nfs/smb/whatever mount it
> and synchronize as local filesystems.
>
> -Tobias
> >
> >       -----Original Message-----
> >       From: taroon-list-bounces redhat com on behalf of Gary Mansell
> >       Sent: Thu 4/14/2005 9:13 AM
> >       To: nahant-list redhat com; linux-lvm redhat com;
> > taroon-list redhat com; linux-poweredge dell com
> >       Cc:
> >       Subject: How to mirror or Replicate a primary server's
> > data to asecondarymachine
> >
> >
> >
> >       Hi,
> >
> >       I am considering whether to go down the path of a dual
> > server, manual
> >       failover solution for one of my RHEL fileservers.
> >
> >       I would have two identical servers in two different
> > machine rooms on our
> >       site and if the main server failed then I would
> > manually reconfigure the
> >       secondary server with the primary server's IP address
> > so that the client
> >       machines can carry on working.
> >
> >       Can anyone recommend to me what I need to do to mirror
> > the data across
> >       the two servers so that updates to the primary server
> > are also made to
> >       the secondary server
> >
> >
> >
> >       Thanks in advance for any help
> >
> >       Regards
> >
> >       Gary Mansell
> >       --

---
Kent Walker - Datatel Analyst
Information Technology - U.C. Hastings College of the Law
415-565-4635