Xen users - Aug 2005 - Question about memory

I am trying to setup Xen on a machine with only 384mb or RAM. I need
three virtual servers and would like each to have at least 128MB of
RAM. I am unsure as to wether  the amount of memory I can give each
virtual server is limited to totalling to the system''s memory or can
be up to the host systems memory for each virtual server. Is it
possible for the virtual systems to each have half the host system''s
memory and just have a huge swap on the host? Will the xen virtual
servers handle being paged to swap?

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

NovusOrdo wrote:
> I am trying to setup Xen on a machine with only 384mb or RAM. I need
> three virtual servers and would like each to have at least 128MB of
> RAM.
You need more RAM. You''re not accounting for the memory set aside for
Xen itself, let alone domain 0''s RAM requirements. Right now, assuming
a
minimalist dom0, you might be able to eke out 80-90 MB per unprivileged
domain.
> I am unsure as to wether  the amount of memory I can give each
> virtual server is limited to totalling to the system''s memory or
can
> be up to the host systems memory for each virtual server.
Xen does no paging of its own. It deals in physical RAM exclusively.
Individual domains may page as they see fit, but Xen neither knows about
it, nor does it care.

-- 
Derrik Pates
demon@devrandom.net

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users