Re: KVM Block Device Driver

2013-08-14 Thread Spensky, Chad - 0559 - MITLL
format raw? I don't think it should matter, but I was just >wondering. > >-- >Wolf > >On Wed, Aug 14, 2013 at 11:02 AM, Wolfgang Richter >wrote: >> On Wed, Aug 14, 2013 at 10:43 AM, Spensky, Chad - 0559 - MITLL >> wrote: >>> Wolf, >>> >>&

Re: KVM Block Device Driver

2013-08-14 Thread Spensky, Chad - 0559 - MITLL
t fit your environment >if you wanted a production solution. > >-- >Wolf > >On Wed, Aug 14, 2013 at 10:07 AM, Stefan Hajnoczi >wrote: >> On Wed, Aug 14, 2013 at 07:29:53AM -0400, Spensky, Chad - 0559 - MITLL >>wrote: >>> We are trying to keep an active shadow copy

Re: KVM Block Device Driver

2013-08-14 Thread Spensky, Chad - 0559 - MITLL
Group 59 (Cyber Systems Assessment) Ph: (781) 981-4173 On 8/14/13 8:16 AM, "Fam Zheng" wrote: >On Wed, 08/14 07:29, Spensky, Chad - 0559 - MITLL wrote: >> Stefan, Fam, >> >> We are trying to keep an active shadow copy while the system is >>running >

Re: KVM Block Device Driver

2013-08-14 Thread Spensky, Chad - 0559 - MITLL
. Spensky MIT Lincoln Laboratory Group 59 (Cyber Systems Assessment) Ph: (781) 981-4173 On 8/14/13 6:05 AM, "Stefan Hajnoczi" wrote: >On Wed, Aug 14, 2013 at 10:40:06AM +0800, Fam Zheng wrote: >> On Tue, 08/13 16:13, Spensky, Chad - 0559 - MITLL wrote: >> > Hi All, &

KVM Block Device Driver

2013-08-13 Thread Spensky, Chad - 0559 - MITLL
Hi All, I'm working with some disk introspection on KVM, and we trying to create a shadow image of the disk. We've hooked the functions in block.c, in particular bdrv_aio_writev. However we are seeing writes go through, pausing the VM, and the comparing our shadow image with the actual VM imag