Re: Backing up a dual opteron server with an Pentium 4 server

[Dean Hamstead <dean@bong.com.au>]

i havent got an amd64 server however ive done this sort of thing
in more stupid combinations like cross distribution (turbo linux,
slackware and redhat), cross os (freebsd vs linux vs openbsd)
and cross arch (powerpc vs sparc vs intel). not because of design
simply because the servers where in place and doing things and
we wanted them to take over from each other. later down the track
no problems, we made things more sane.

mysql. just run replication from your primary to your secondary
server. replication is simple to set up but has caveats and
tends to break from time to time, *especially* with high insertion
loads (like mod_log_sql). however since i pulled apache logs into
a seperate mysql instance and stopped replication on it (so just
site data is replicated) its been solid.

replication should be fine for mysql

postfix is mainly config files. if you are running postfix out of
mysql, even less of a worry.

apache. static pages np. you might have problems with compiled
cgi stuff. and zend compiled php.

pos

Dean

Steve Dondley wrote:
> The big services on the server: MySQL, Apache, and Postfix.
>
> On 9/22/05, Dean Hamstead <dean@bong.com.au> wrote:
>
> > depends on 'what' the p4 is taking over. if its just webserving
> > or something, but application servers are more complicated
> >
> > for web services etc that just have config files it shouldnt be
> > a problem
> >
> > Dean
> >
> > Steve Dondley wrote:
> >
> > > I've got a Pentium 4 web server that I'm going to replace with a Dual
> > > Opteron server.  I'd like the Pentium 4 server to be able to take over
> > > for the Dual Opteron temporarily in case it fails.
> > >
> > > Besides the obvious decline in performance, might there be any
> > > unforeseen complications stemming from the fact that the Pentium 4 is
> > > 32 bit and the Opteron is 64?  I'm quite sure the answer is "no" but I
> > > thought I'd ask before I run out and drop a bundle on a new server.
> > >
> > > --
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> > >
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>
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> http://www.dondleycommunications.com
>
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