Red Hat Bugzilla – Bug 603990
Default to cache=none for block devices
Last modified: 2013-01-09 17:44:29 EST
Description of problem:
We recommend running qemu with 'cache=none' for block devices. Set the default to 'cache=none' so that libvirt, vdsm, virt-manager, cmd-line users, all don't have to explicitly do that.
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release. Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release. This request is not yet committed for
Upstream now has cache=writeback as the default. However, this is a non-issue for RHEL since we always go through libvirt.