[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] Xen configuration file format
On Tue, Apr 7, 2009 at 4:42 PM, Geert Janssens <info@xxxxxxxxxxxx> wrote: > * In xen 3.0.x I had used virt-install to create new domU's. This in turn > created a config file in /etc/xen. I'm trying to do the same with xen 3.3.1 > and the accompanying virt-install. The domU's are created an run properly, but > there's no longer a config file in /etc/xen. So how can I tweak the > configuration after initial setup ? The configuration is now managed by xend (which is the same thing if you run "xm new", btw). Here are some options to change domU config : - use virt-manager to change some settings - edit the configuration on the fly (using xm and virsh). For example, there's "xm block-attach" - stop, dump, delete, edit, load, start domU. For example, if your domU name is "test" : # xm shutdown test ( wait for it to exit) # xm list -l test > test.sxp ( edit test.sxp using your favorite editor ) # xm delete test # xm new -F test.sxp # xm start test > > * The gitco xen seems to keep information on domU's in some internal database. I believe it's in xenstore. > I still have some domU's (with config) from before I installed gitco xen. They > seem to work fine. However 'xm list' will always show all the domU's created > with gitco's virt-install (I mean whether they are started or stopped), and > only the domU's created before gitco that are actually running. So if I stop a > gitco created domU, it still appears in 'xm list' with no state, but if I stop > a pre-gitco domU, it disappears completely from 'xm list'. I can start it with > no problems though and it will reappear in 'xm list'. > with /etc/xen/* config files : xm create with xend-managed domUs : "xm new" and "xm start" (see example above) You could always dump virt-install/virt-manager altogether and create domU config files manually. > * 32bit vs 64bit. I'm still confused about this. What is possible, and what is > not ? Or better even, what is recommended ? My server has got 8Gb of RAM for > now. Would 64 bit xen give me better performance ? And should dom0 be 64bit > then as well ? I think most of my domU's don't have very large memory needs so > probably these can remain 32bit. The easy way, have 64bit dom0, use Centos, install Xen 3.3.1 (64bit) rpms from Gitco. For domUs, use whatever you need (32 or 64bit) > But is this possible ? Can I mix 64bit and 32bit xen/dom0/domU's for PV and > HVM ? > Yes, if you use 64bit hypervisor. Regards, Fajar _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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