[ovirt-users] iscsi data domain when engine is down

[Devin A. Bougie]

On Mar 10, 2017, at 1:28 PM, Juan Pablo <pablo.localhost at gmail.com> wrote:
> Hi, what kind of setup you have? hosted engine just runs on nfs or gluster afaik.

Thanks for replying, Juan.  I was under the impression that the hosted engine would run on an iSCSI data domain, based on http://www.ovirt.org/develop/release-management/features/engine/self-hosted-engine-iscsi-support/ and the fact that "hosted-engine --deploy" does give you the option to choose iscsi storage (but only one path, as far as I can tell).

I certainly could manage the iSCSI sessions outside of ovirt / vdsm, but wasn't sure if that would cause problems or if that was all that's needed to allow the hosted engine to boot automatically on an iSCSI data domain.

Thanks again,
Devin

> 2017-03-10 15:22 GMT-03:00 Devin A. Bougie <devin.bougie at cornell.edu>:
> We have an ovirt 4.1 cluster with an iSCSI data domain.  If I shut down the entire cluster and just boot the hosts, none of the hosts login to their iSCSI sessions until the engine comes up.  Without logging into the sessions, sanlock doesn't obtain any leases and obviously none of the VMs start.
> 
> I'm sure there's something I'm missing, as it looks like it should be possible to run a hosted engine on a cluster using an iSCSI data domain.
> 
> Any pointers or suggestions would be greatly appreciated.
> 
> Many thanks,
> Devin
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