SmartOS? If so, are they any good?
Is that documentation generated specifically for Debian, or does the actual Xen documentation relate nicely to the versions of Xen that packaged for Debian?
I have tried ProxMox, it's OK but I just couldnt get into it!
Like I say the best option in my opinion is get CentOS, minimal install with just the Virtualization Packages. If you use CentOS 6.2 you'll get the latest versions of libvirt and virt-manager and it ..... just works now!
I tried proxmox aswell -was rather clunky and in the end i got rid. oVirt is what i'm going to look at next as mentioned above.
Yeah - Another big thumbs up for XenServer over here, free version does exactly what we need!...I like free
Xen - Debian Wiki
This details installation of Xen on Debian, plus some troubleshooting for assorted issue, and I've found that there's generally a good selection of solutions available for Xen-onDebian when you search Google. That said, I've recently been trying to connect a PPPoE modem to a NIC passed through as a PCI device to a Xen virtual machine and have not been having having much success, and have not been able to find much documentation or discussion about it. It's worth noting that if you're buying a server for virtualisation, as well as making sure the chipset supports processor virtualisation, make sure it can support virtualisation of PCI devices too - it's a separat instruction set, for some reason, and it's bound to come in handy at some point.
Virtualization is actually very easy.
Just install a new Windows 2008 R2 server with the hyper-v role. Start building new servers machines as and when you need them. You can even migrate a current server using a small utility like disk2vhd.
The advantages are:
- Quick to build new servers
- Less hardware needed
- Ability to backup/image any server in a few minutes
- Easily migrate servers to new hardware or keep copies of servers on redundant hardware
People who use Sans or specialist switches are taking virtualization to the extremes. You normally find that type of thing in big hosting companies or large companies. It works fine in schools but its a bit overkill imo. A simple server with a 500gb hard disk is enough for 5 or 6 virtual machines in my experience.
Last edited by zag; 1st March 2012 at 10:52 AM.
For a SAN consider dot Hill, Oracle or Dell.
N.B. Dot Hill were OEMing kit for HP.
See my previous post in this thread for what we are planning - how would you change it? Please throw it out there for us to evaluate.
Sorry to disappoint but the free version of oVirt is rather garbage it's VERY clunky....... almost as much as Proxmox.... Proxmox is built on Debian if I remember rightly.
I virtualized my whole school for about 3k using standard 16gb ram dell servers. We have 3 of them running 12 Vm's on hyper-v.
The whole idea of going virtual is to save on resources and make things very easy to backup/migrate so the "what if the hard disk fails" argument kind of goes out the window as long as you backup properly.
A Backup PSU is of course a must though
This design doesn't stop you going with a SAN or big hardware in the future. Its easy to migrate once your machines are virtual.
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