Great. Nice to hear about stuff in production before I "make the leap".
Any trick about installing xen virtual machines I should be aware of? On 7/5/12, Mobile Penguin <[email protected]> wrote: > We use a combination of XEN and KVM for our webhosting/VPS. The great thing > about Virtualization and Linux is the ability backup your virtual machines. > If your running a somewhat homogenous setup failover and recovery is rather > trivial. XEN running on the proper hardware suffers almost no performance > penalty's at almost native speeds though this really depends on how many > virtual machines you have running. We use "16 core" i7's which are really 8 > when you break it down. I admin an apache SOLR server which relies heavily > on java, i have this "pinned" to only utilize a set number of cores and it > is serving tens of thousands of queries hourly without any performance > impact on other virtual hosts. If there are no budget constraints i highly > recommend the Xeon E-series and a dedicated hardware raid controller. We > use a combination of platter based disks and SSD drives to get the best > performance/reliability. > > On Thu, Jul 5, 2012 at 10:19 AM, Sam Hooker <[email protected]> wrote: > >> Dave, >> >> I use Xen 3 to run, among other things, an instance of Zimbra within a >> paravirtualized CentOS 5 guest. Zimbra relies heavily on Java and >> moderately on MySQL, and performs acceptably (although it serves a very >> small population). Sizing concerns aside, I didn't have to implement any >> workarounds or special tunings to get it to work. >> >> >> Cheers, >> >> -sth >> >> sam hooker|[email protected]|http://www.noiseplant.com >> >> "To invent, you need a good imagination and a pile of junk." >> Thomas Edison >> >> ----- Original Message ----- >> > From: "Dave Tisdell" <[email protected]> >> > To: [email protected] >> > Sent: Thursday, July 5, 2012 9:19:51 AM >> > Subject: xen virtualization >> > >> > Hi, >> > >> > Are any of you using xen virtualization? I have a client that is >> > starting to move some of his servers from OS X to Linux and we are >> > considering virtualizing some of the services. He runs a web based >> > data collections service for schools. The main thing running inside >> > the virtual servers would be JAVA based web apps connecting to a >> > MySQL >> > database. Any performance issues with JAVA apps inside a xen based >> > virtual server I should be aware of? >> > Thanks. >> > >> > Dave >> > >> > -- >> > >> > >> > This e-mail may contain information protected under the Family >> > Educational >> > Rights and Privacy Act (FERPA). If this e-mail contains student >> > information >> > and you are not entitled to access such information under FERPA, >> > please >> > notify the sender. Federal regulations require that you destroy this >> > e-mail >> > without reviewing it and you may not forward it to anyone. >> > >> > -- David Tisdell. Music Teacher Browns River Middle School 20 River Road Jericho, VT 05465 [email protected] (e-mail) -- This e-mail may contain information protected under the Family Educational Rights and Privacy Act (FERPA). If this e-mail contains student information and you are not entitled to access such information under FERPA, please notify the sender. Federal regulations require that you destroy this e-mail without reviewing it and you may not forward it to anyone.
