[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Hypervisor Memory Limitations on 64-bit Architecture?
On Fri, Jul 18, 2008 at 12:56:34PM -0400, Joshua West wrote: > Hey all, > > I'm wondering if anybody could shed some light on this subject. Are > there limitations as to how much RAM a 64-bit Hypervisor will > recognize/support under the Xen 3.1.x or 3.2.x series (or the upcoming > 3.3.x if anything has changed)? > > >From what I recall, a 32-bit Xen Hypervisor will recognize up to 16GB of > RAM and a 64-bit Xen Hypervisor will recognize up to 32GB -- but I'm not > certain on if 32GB is in fact the upper limit for 64-bit Xen. > http://www.redhat.com/rhel/compare/ RHEL5 supports 16 GB of mem on x86 (32bit) platform. RHEL5 supports 256 GB of mem on x86_64 platform. And RHEL5 contains Xen. http://www.nabble.com/Unable-to-start-hvm-guest-on-cs16998-td15419631.html "Running Xen Unstable changeset 16998 (pulled 20080208) on Unisys ES7000/one 64x 256gb with SLE10SP1 x64." There you have an actual server with 256 GB of mem running Xen :) (yeah, the mail is about problems, but hey, it's xen-unstable repository they're testing there :) -- Pasi _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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