Re: [et-mgmt-tools] Re: [libvirt] RE: [Qemu-devel] [ANNOUNCE] virt-mem tools version 0.2.8 released
On Thu, Aug 07, 2008 at 11:47:39AM +0100, Daniel P. Berrange wrote:
On Thu, Aug 07, 2008 at 07:40:58PM +0900, Jun Koi wrote:
> One of the problem is that these tools work via libvirt, so on a VM is
> not managed by libvirt, these tools no longer work.
That's not a problem - that's a reason to use libvirt :-) It allows the
same tools to work whether using Xen, QEMU, KVM or any other full machine
virtualization suported by libvirt, rather than being tied to one particular
hypervisor. Not to mention ability to run them remotely, with authentication
and encryption, etc
We also support running the tools from memory images which you can
capture using the QEMU "memsave" command (see the '-t' option). No
libvirt required for that, _but_ to see any interesting stuff you'd
need to capture the entire guest memory which could obviously be quite
large.
You could do 'virt-mem capture' which captures just the bits of memory
that contain interesting data, and that reduces the amount of data you
need to capture substantially. Unfortunately I broke 'virt-mem
capture' in the latest release by accident, and in any case it
requires libvirt to do the capturing.
I think the message here is, install libvirt & be happy :-)
Rich.
--
Richard Jones, Emerging Technologies, Red Hat http://et.redhat.com/~rjones
virt-top is 'top' for virtual machines. Tiny program with many
powerful monitoring features, net stats, disk stats, logging, etc.
http://et.redhat.com/~rjones/virt-top