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Disclaimer; I'm not a sysadmin. Data point below is second hand knowledge from helping to track down issues with the ops team. Our company started with RHEV an

Disclaimer; I'm not a sysadmin. Data point below is second hand knowledge from helping to track down issues with the ops team. Our company started with RHEV and ran into lots and lots of issues with it. There were compatibility issues between our VM infrastructure and SAN (firmware problems on one side, I forget which). Guests would just lock up all the time. There were other problems, but I'm not familiar with them. We've had little to no problem since migrating to VMWare.

dijit 12y ago
Controversial opinion here probably, but vmware has been doing virt for a long time, so it makes sense that it's rather polished if you fit there eco-system. however qemu-kvm hasn't been around so long, it's still not anywhere near the adoption numbers such as Xen, however I've used it in production in three different large companies with great success.. the beauty is that more people who use it means more eyes on fixing it. so for small things especially I'd really recommend it, and honestly I like it anyway, it feels very freeing to use libvirt/kvm- you have much finer grained controls than what vmware gives even in it's expensive offerings, and the best bit is that it's free as in beer- you can use all it's features without being in any kind of violation with licenses. the tools to administer it are ssh if you're familiar with unix or a GUI python program which gives you good control and graphs (works over ssh tooo, so encryption goodness) and works cross platform (last time I checked) contrasting to when I last used vmware:- you had to use there vsphere client which isn't ported to OSX or Linux. I use Windows at work so it's not a problem, but I would prefer to run linux so I can actually use decent virtualisation solutions for small test labs, my company baulks at the cost of vmware workstation, and if I run linux for kvm then I cannot administer our massive ESX clusters..

dijit 12y ago

Controversial opinion here probably, but vmware has been doing virt for a long time, so it makes sense that it's rather polished if you fit there eco-system. however qemu-kvm hasn't been around so long, it's still not anywhere near the adoption numbers such as Xen, however I've used it in production in three different large companies with great success.. the beauty is that more people who use it means more eyes on fixing it. so for small things especially I'd really recommend it, and honestly I like it anyway, it feels very freeing to use libvirt/kvm- you have much finer grained controls than what vmware gives even in it's expensive offerings, and the best bit is that it's free as in beer- you can use all it's features without being in any kind of violation with licenses. the tools to administer it are ssh if you're familiar with unix or a GUI python program which gives you good control and graphs (works over ssh tooo, so encryption goodness) and works cross platform (last time I checked) contrasting to when I last used vmware:- you had to use there vsphere client which isn't ported to OSX or Linux. I use Windows at work so it's not a problem, but I would prefer to run linux so I can actually use decent virtualisation solutions for small test labs, my company baulks at the cost of vmware workstation, and if I run linux for kvm then I cannot administer our massive ESX clusters..