I think that we are going to change directions. I am getting pretty much the same feedback from everyone. Please if anyone has any other suggestions or information, send it to me.<br><br>Thanks<br>Josh<br><br><div><span class="gmail_quote">
On 1/10/07, <b class="gmail_sendername">Ross S. W. Walker</b> <<a href="mailto:rwalker@medallion.com">rwalker@medallion.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
> -----Original Message-----<br>> From: <a href="mailto:centos-bounces@centos.org">centos-bounces@centos.org</a><br>> [mailto:<a href="mailto:centos-bounces@centos.org">centos-bounces@centos.org</a>] On Behalf Of Ross S. W. Walker
<br>> Sent: Thursday, January 11, 2007 12:07 AM<br>> To: CentOS mailing list<br>> Subject: RE: [CentOS] VMWare GSX Server and CentOS<br>><br>> > -----Original Message-----<br>> > From: <a href="mailto:centos-bounces@centos.org">
centos-bounces@centos.org</a><br>> > [mailto:<a href="mailto:centos-bounces@centos.org">centos-bounces@centos.org</a>] On Behalf Of John R Pierce<br>> > Sent: Wednesday, January 10, 2007 11:53 PM<br>> > To: CentOS mailing list
<br>> > Subject: Re: [CentOS] VMWare GSX Server and CentOS<br>> ><br>> > Joshua Gimer wrote:<br>> > > Has anyone had experience (good or bad) with VMWare GSX<br>> > Server running<br>> > > CentOS as a VM under high load?
<br>> > ><br>> > > Here is the situation. We are planning on rolling out some<br>> > new boxes<br>> > > to replace an existing box. Currently this box (Sun V860)<br>> > is running<br>
> > > web services, database services, mail for students, and is an<br>> > > instructional box for compiling code, and web scripting<br>> among other<br>> > > things.<br>> > ><br>> > > We are planning on doing one of two things, either using
<br>> VMWare and<br>> > > splitting up the services or using Solaris Zones. The<br>> > box(s) has to be<br>> > > able to access data stored on the SAN (Fiber Channel HBA's). The<br>> > > boxes(VM's), or Zones would be split up accordingly:
<br>> > ><br>> > > Database box: Oracle, Postgres, and MySQL<br>> > > Mail: Sendmail, POPS, and IMAPS (roughly 25,000 mailboxes)<br>> > > Web: Apache, PHP, mod_ssl<br>> > > Interactive Logins: Compilers and such.
<br>> > ><br>> > > Any information about any experiences with VMWare and<br>> CentOS, under<br>> > > similar load would be helpful. I will probably make this<br>> > same post on<br>> > > the Sun Solaris Mailing List, and VMWare's forums. Thanks
<br>> > in advance!<br>> ><br>> > I dunno, but I'm curious why you want to run so many VMs' or<br>> > zones?<br>> > the database/mail/web stuff would probably all run most<br>> > efficiently in
<br>> > the 'host' OS... I can see some advantages to running student<br>> > interactive logins in a VM or zone for security isolation.<br>> ><br>> ><br>> > its that, or I'd put the infrastructure things (email, school web,
<br>> > school databases) on a dedicated and secure hardware<br>> > platform, then put<br>> > all the instructional stuff on a seperate hardware platform.<br>> > I don't<br>> > like having too many eggs in one basket.
<br>><br>> I agree keep the infrastructure stuff physically separate from the<br>> student stuff. That said, say a 4 node cluster for<br>> infrastructure stuff<br>> running VMs on each node in a scenario where the other nodes can take
<br>> over VMs from a failed node. Have them run to Fiber storage<br>> or some kind<br>> of SAN and you should be all set.<br>><br>> For student stuff you can run a separate cluster using VMs<br>> for different
<br>> courses, maybe Vmware, maybe Xen whichever works for you.<br>><br>> CentOS should be able to handle all that very well, it is<br>> after all RHEL<br>> and has been tuned for heavy duty workloads.<br>>
<br>> -Ross<br><br>Actually re-reading my post let me say the infrastructure cluster can<br>run the database/mail/web on the host OS as the previous poster said and<br>gain significant performance. Have the host services fail-over in the
<br>cluster for continuity.<br><br>Xen/Vmare VMs for student course work is probably best as they can be<br>rapidly deployed and varied in configuration.<br><br>-Ross<br><br><br>-Ross<br><br>______________________________________________________________________
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</a><br></blockquote></div><br><br clear="all"><br>-- <br>Thx<br>Joshua Gimer