Re: [Qemu-devel] Storage requirements for live migration

2011-11-11 Thread Anthony Liguori
On 11/11/2011 04:43 PM, Ryan Harper wrote: == Image Formats == Image formats are not safe to use with live migration. The reason is that QEMU caches data for image formats and does not have a mechanism to flush those caches. The following attempts to describe the issues with the various format

Re: [Qemu-devel] Storage requirements for live migration

2011-11-11 Thread Ryan Harper
> == Image Formats == > > Image formats are not safe to use with live migration. The reason is that > QEMU caches data for image formats and does not have a mechanism to flush > those caches. The following attempts to describe the issues with the > various formats > > === QCOW2 === > > QCOW

Re: [Qemu-devel] Storage requirements for live migration

2011-11-11 Thread Anthony Liguori
On 11/11/2011 03:55 AM, Daniel P. Berrange wrote: On Fri, Nov 11, 2011 at 10:38:20AM +0100, Kevin Wolf wrote: Am 11.11.2011 01:11, schrieb Anthony Liguori: I did a brain dump of my understanding of the various storage requirements for live migration. I think it's accurate but I may have misund

Re: [Qemu-devel] Storage requirements for live migration

2011-11-11 Thread Anthony Liguori
On 11/11/2011 03:38 AM, Kevin Wolf wrote: Am 11.11.2011 01:11, schrieb Anthony Liguori: I did a brain dump of my understanding of the various storage requirements for live migration. I think it's accurate but I may have misunderstand some details so I would appreciate review. I think given sec

Re: [Qemu-devel] Storage requirements for live migration

2011-11-11 Thread Kevin Wolf
Am 11.11.2011 10:55, schrieb Daniel P. Berrange: > On Fri, Nov 11, 2011 at 10:38:20AM +0100, Kevin Wolf wrote: >> Am 11.11.2011 01:11, schrieb Anthony Liguori: >>> I did a brain dump of my understanding of the various storage requirements >>> for >>> live migration. I think it's accurate but I m

Re: [Qemu-devel] Storage requirements for live migration

2011-11-11 Thread Daniel P. Berrange
On Fri, Nov 11, 2011 at 10:38:20AM +0100, Kevin Wolf wrote: > Am 11.11.2011 01:11, schrieb Anthony Liguori: > > I did a brain dump of my understanding of the various storage requirements > > for > > live migration. I think it's accurate but I may have misunderstand some > > details > > so I wo

Re: [Qemu-devel] Storage requirements for live migration

2011-11-11 Thread Kevin Wolf
Am 11.11.2011 01:11, schrieb Anthony Liguori: > I did a brain dump of my understanding of the various storage requirements > for > live migration. I think it's accurate but I may have misunderstand some > details > so I would appreciate review. > > I think given sections (1) and (2), the only

Re: [Qemu-devel] Storage requirements for live migration

2011-11-11 Thread Kevin Wolf
Am 11.11.2011 07:27, schrieb Mark Wu: > On 11/11/2011 08:11 AM, Anthony Liguori wrote: >> I did a brain dump of my understanding of the various storage >> requirements for live migration. I think it's accurate but I may have >> misunderstand some details so I would appreciate review. >> >> I think

Re: [Qemu-devel] Storage requirements for live migration

2011-11-10 Thread Mark Wu
On 11/11/2011 08:11 AM, Anthony Liguori wrote: I did a brain dump of my understanding of the various storage requirements for live migration. I think it's accurate but I may have misunderstand some details so I would appreciate review. I think given sections (1) and (2), the only viable thing

[Qemu-devel] Storage requirements for live migration

2011-11-10 Thread Anthony Liguori
I did a brain dump of my understanding of the various storage requirements for live migration. I think it's accurate but I may have misunderstand some details so I would appreciate review. I think given sections (1) and (2), the only viable thing is to require cache=none unless we get new int