We currently have 5 dedicated server as only one of them are on windows the rest are all on Centos 5.3 with cpanel
What we need now is a way to easily restore these servers in case something goes wrong so we can quickly reset them up on another server put it back online in matter of hours
I was thinking about virtualizing these server with openVZ or anything better so i can move quickly to another server in no time. My colleague is saying that virtuaization wont be enough because we have shoutcast streaming on our servers and it require a lot of power (but i don't think it would affect anything on that)...
What do you mean about SHOUTcast servers requiring a lot of power? And how would power consumption related to backing up?
I recommend using RAID to avoid problems when there are crashes and backing up just incase the RAID controller goes bad on you...
It's because SHOUTcast require an excellent network... sorry if i misled you with "power" as i was talking about the network "power" instead.
So maybe if it's in a virtual environment maybe it'll cause trouble.. but this I'm not sure and that's was a part of my question.
By virtualizing the servers i would be able to backup the server images elsewhere so i could just set up another server and put the images back on it and bring it back online in no time but again would it be a good solution or not? And why
Normally after installation and configuration of the new server, I just keep a bzip2 compressed root file system. If that particular server dies, I just replace the hardware and untar the file system. Reboot and then I restore the home directories or other things that I back up weekly.