|Subject:||Re: [Qemu-devel] [RFC] Disk integrity in QEMU|
|Date:||Sun, 12 Oct 2008 14:14:18 -0400 (EDT)|
I do not believe that this means that the data is still sitting in the host cache. I realize it may not yet be on a disk, but, at a minimum, I would expect that is has been sent to the storage controller. Do you consider the hosts cache to be part of the storage subsystem ?The fact that the virtualization layer has a cache is really not that unusual.
Wouldn't it be better to have cache=on/off control wether or not qemu/kvm does any caching on their own and have a different configuration option for O_DIRECT / O_DSYNC on the diskfiles?
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