2009/9/16 Oron Peled <o...@actcom.co.il>: > On Wednesday, 16 בSeptember 2009 00:24:16 Amos Shapira wrote: >> Yes. We use xen heavily on CentOS 5 at work and am pretty excited that >> RH 5.4 is out with KVM "preview tech", I'm not an expert but got the >> impression that KVM might get things better than Xen eventually. > > If your CPU support virtualization extensions (egrep 'vmx|svm' /etc/cpuinfo) > than KVM is definitely the way to go: > * KVM is part of upstream kernel since 2.6.20 -- supported by every up > to date distribution. > > * VirtualBox may be OK, but it's the kind of "half-free" solution. > There's an "Open Source Edition", but you have to use other editions > for the full feature set.
I've never considered VirtualBox (or VMware, for that matter) for anything except that it's included in Ubuntu for desktop, and it had a very easy interface to setup Windows quickly. I saw the reference to libvirt in the RHEL 5.4 announcement and might use it to convert our home-built tools to ease migration from Xen to KVM. It's interesting, BTW, I just returned from interviewing about a dozen system admin candidates in the Silicon Valley and almost all of them had "VMware" in their "virtualization" checkbox, maybe one had hands-on experience with Xen, none had experience with linux-ha, Linux Virtual Server, DRBD - they all used hardware appliances for this stuff instead of the free open source tools we use (OK, we will move away from DRBD to iSCSI soon, but still the point was that we apparently rely on shoe-string style FOSS more than most people I met in that recruiting blitz). > Don't fall in the freebies trap -- חופשי זה יותר מחינם Thanks but you don't have to preach me about this. As someone who celebrated the 20th anniversary of his first UNIX account a few years ago, I think I managed to develop a hunch to stay away from such freebies. Heck - I even cringe when one of my workers praises RedHat Cluster Suite over Linux-HA (with all of Linux-HA's faults) :) Cheers, --Amos _______________________________________________ Linux-il mailing list Linux-il@cs.huji.ac.il http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
