Bug 1328147

Summary: instack-virt-setup configures "unsafe" disk caching
Product: Red Hat OpenStack Reporter: Brent Eagles <beagles>
Component: rhosp-directorAssignee: Angus Thomas <athomas>
Status: CLOSED WONTFIX QA Contact: Arik Chernetsky <achernet>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 8.0 (Liberty)CC: aschultz, dbecker, mburns, morazi, rhel-osp-director-maint
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Last Closed: 2017-01-27 22:59:18 UTC Type: Bug
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Description Brent Eagles 2016-04-18 15:04:34 UTC
When using instack-virt-setup, the libvirt domains are configured with the "unsafe" cache mode. This increase the risk of corrupting the undercloud and baremetal VMs in the event of power failure or unclean shutdown of VMs (e.g. force resets from the virt-manager GUI, etc).

Removing the cache option to and just using the libvirt/qemu defaults is probably preferable.