Michal Privoznik :
>
> On 7/29/19 3:51 AM, Ming-Hung Tsai wrote:
> > I'm curious that why librbd sets this limitation? The rule first
> > appeared in librbd.git commit d57485f73ab. Theoretically, a
> > write-through cache is also safe for VM migration, if the cache
> > implementation guarantees th
On 7/29/19 3:51 AM, Ming-Hung Tsai wrote:
I'm curious that why librbd sets this limitation? The rule first
appeared in librbd.git commit d57485f73ab. Theoretically, a
write-through cache is also safe for VM migration, if the cache
implementation guarantees that cache invalidation and disk write a
Sorry, the title and content are wrong. I mean libvirt, not librbd.
Ming-Hung Tsai :
>
> I'm curious that why librbd sets this limitation? The rule first
> appeared in librbd.git commit d57485f73ab. Theoretically, a
> write-through cache is also safe for VM migration, if the cache
> implementatio
I'm curious that why librbd sets this limitation? The rule first
appeared in librbd.git commit d57485f73ab. Theoretically, a
write-through cache is also safe for VM migration, if the cache
implementation guarantees that cache invalidation and disk write are
synchronous operations.
For example, I'm