Quoting Tracy R Reed <[EMAIL PROTECTED]>: Way behind on the kplug-list.. for a change. ;)
ends. I am fairly certain that coLinux and UML etc are going away in favor of Xen. It is on track to be included in RHEL and SuSe Linux and I am sure others will follow.
Yeah, Xen is a very cool looking technology. I attended a talk on it at LW in SF a couple weeks ago, unfortunately, as is often the case at those talks, his initial talk ran over so he did very little actual demo. I'm going to be playing with it at work starting very soon. One of the cool things we think it'll do for us is allow us to keep all our linux compute hosts installed identically. What I mean is, right now, we have a ton of opteron based hosts, but are still split on 32bit installs and 64bit installs because some of the older tools that are still needed (and a few in-house tools) still have issues running properly on the 64bit hosts. One of the things I can see us doing in the future is having all our hosts running a default install using Xen, and the main jobs running on the default install. Those few jobs that need 1-off support, could be handled by a new virtual host instance that runs the OS install that tool needs, then shuts it down at the end of the job. Or/and, we tend to run a job slot per cpu on a host.. seperate jobs could be run in seperate virtual hosts, with the RAM the user requested allocated per host to keep things like a host being completely run out of ram from a job killing things randomly.. we've even had jobs hit the limit with a single process on hosts with 64Gig of ram that effected not only that process' user but other jobs as well. Having seperate Xen hosts (without the performance hit that vmware tends to have) would keep one user from effecting others. BTW, kinda on topic.. we have a vendor (not saying who..) bringing in a demo of some new tool with a hardware component. They're supposedly bringing in a Dell EM64T host (why not opteron I don't know).. Redhat only of course.. (grr) and they have to run an instance of oracle to support it. But they ran into issues running oracle under 64bit so their solution is to run a 32bit instance of a full OS install in a VMware instance with the oracle server running in there! HA! Talk about an ugly hacked solution. I'm betting the oracle instance would run if they'd just spend a little time on the issue. -- Mike Marion-Unix SysAdmin/Staff Engineer-http://www.miguelito.org Marge: "Homer, sitting that close to the TV can't be good for you." Homer: "Talking while the TV's on can't be good for you!" ==> Simpsons -- [email protected] http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-list
