Are you using libvirt driver ? As I remember, the way to check if compute nodes with shared storage is : create a temporary file from source node , then check the file from dest node , by accessing file system from operating system level. And boot from volume is just a way to boot instance , not means shared storage or not . For non-shared storage , have you try block migration with option --block-migration ?
2014-03-08 14:08 GMT+08:00 Chris Friesen <chris.frie...@windriver.com>: > Hi, > > I was just testing the current icehouse code and came across some > behaviour that looked suspicious. > > I have two nodes, an all-in-one and a compute node. I was not using > shared instance storage. > > I created a volume from an image and then booted an instance from the > volume. Once the image was up and running I tried to do a "nova > live-migration <instance>" and got the following error: > > > cfriesen@controller:/opt/stack/nova/nova/compute$ nova live-migration > fromvol > ERROR: controller is not on shared storage: Live migration can not be used > without shared storage. (HTTP 400) (Request-ID: req-0d8da5e4-b0ec-401d-be95- > d9c4f9f7e062) > > > Shouldn't booting from volume count as a form of shared storage? > > Chris > > _______________________________________________ > OpenStack-dev mailing list > OpenStack-dev@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > -- ChangBo Guo(gcb)
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