> -----Original Message----- > From: centos-bounces at centos.org > [mailto:centos-bounces at centos.org] On Behalf Of Ross S. W. Walker > Sent: Thursday, January 11, 2007 12:07 AM > To: CentOS mailing list > Subject: RE: [CentOS] VMWare GSX Server and CentOS > > > -----Original Message----- > > From: centos-bounces at centos.org > > [mailto:centos-bounces at centos.org] On Behalf Of John R Pierce > > Sent: Wednesday, January 10, 2007 11:53 PM > > To: CentOS mailing list > > Subject: Re: [CentOS] VMWare GSX Server and CentOS > > > > Joshua Gimer wrote: > > > Has anyone had experience (good or bad) with VMWare GSX > > Server running > > > CentOS as a VM under high load? > > > > > > Here is the situation. We are planning on rolling out some > > new boxes > > > to replace an existing box. Currently this box (Sun V860) > > is running > > > web services, database services, mail for students, and is an > > > instructional box for compiling code, and web scripting > among other > > > things. > > > > > > We are planning on doing one of two things, either using > VMWare and > > > splitting up the services or using Solaris Zones. The > > box(s) has to be > > > able to access data stored on the SAN (Fiber Channel HBA's). The > > > boxes(VM's), or Zones would be split up accordingly: > > > > > > Database box: Oracle, Postgres, and MySQL > > > Mail: Sendmail, POPS, and IMAPS (roughly 25,000 mailboxes) > > > Web: Apache, PHP, mod_ssl > > > Interactive Logins: Compilers and such. > > > > > > Any information about any experiences with VMWare and > CentOS, under > > > similar load would be helpful. I will probably make this > > same post on > > > the Sun Solaris Mailing List, and VMWare's forums. Thanks > > in advance! > > > > I dunno, but I'm curious why you want to run so many VMs' or > > zones? > > the database/mail/web stuff would probably all run most > > efficiently in > > the 'host' OS... I can see some advantages to running student > > interactive logins in a VM or zone for security isolation. > > > > > > its that, or I'd put the infrastructure things (email, school web, > > school databases) on a dedicated and secure hardware > > platform, then put > > all the instructional stuff on a seperate hardware platform. > > I don't > > like having too many eggs in one basket. > > I agree keep the infrastructure stuff physically separate from the > student stuff. That said, say a 4 node cluster for > infrastructure stuff > running VMs on each node in a scenario where the other nodes can take > over VMs from a failed node. Have them run to Fiber storage > or some kind > of SAN and you should be all set. > > For student stuff you can run a separate cluster using VMs > for different > courses, maybe Vmware, maybe Xen whichever works for you. > > CentOS should be able to handle all that very well, it is > after all RHEL > and has been tuned for heavy duty workloads. > > -Ross Actually re-reading my post let me say the infrastructure cluster can run the database/mail/web on the host OS as the previous poster said and gain significant performance. Have the host services fail-over in the cluster for continuity. Xen/Vmare VMs for student course work is probably best as they can be rapidly deployed and varied in configuration. -Ross -Ross ______________________________________________________________________ This e-mail, and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution or copying of this e-mail, and any attachments thereto, is strictly prohibited. If you have received this e-mail in error, please immediately notify the sender and permanently delete the original and any copy or printout thereof.