Vladislav,
Setting up the volume instances as active/passive has been done by a
number of users for quite some time and it has been working fine, as far
as I know. If you are looking for an HA setup right now, that is the
safest approach.
We have been working on getting HA (Active/Active) support into Cinder
and much of the support is there but we are still working on determining
how we can test and validate that drivers do functions in Active/Active
mode. Once we have agreement on the testing process you will see
drivers getting marked as supporting Active/Active HA.
Hope this information helps.
Jay
On 9/12/2017 8:09 AM, vladislav.belogru...@oracle.com wrote:
Hi,
I'm testing multinode cluster with several cinder-volume instances.
The latter are configured with iSCSI storage (ZFSSA). To enable HA of
cinder-volume I had to specify 'host' option, otherwise volumes will
be bound to a specific host (only good for LVM driver). This works so
far but I am concerned about reported issues like race conditions:
https://bugzilla.redhat.com/show_bug.cgi?id=1193229
Is Active / Passive requirement for non-local (iSCSI-like) backends
still valid? I also see 'cluster' option for A/A which still is 'not
supported':
https://docs.openstack.org/cinder/pike/sample_config.html
Thanks,
Vladislav Belogrudov
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