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Revision 41e794f6

ID41e794f68b1d7f1136f19ba0bf575e47f3b314b8

Added by Apollon Oikonomopoulos about 13 years ago

KVM: use cache=none for shared disk templates

Disable host cache for externally mirrored disks to avoid cache incoherency.
Without this, migrations between the same two nodes may end up in disk
corruption.

This is a runtime override of cluster defaults, mostly a workaround.
Unfortunately, we cannot use cmdlib._CheckHVParams, as we want to check the
hypervisor parameters in conjunction with the disk template, which is part of
the instance definition.

Signed-off-by: Apollon Oikonomopoulos <>
Signed-off-by: Iustin Pop <>
Reviewed-by: Iustin Pop <>

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