RE: System VMs not migrating when host down

2018-02-15 Thread Sean Lair
Thanks for the replies everyone. After further investigating, I am seeing how broken VM HA is right now (at least in 4.9.3). We've started patching the code so it works again, but once we fixed it - we hit the dreaded VMs running on 2 different hosts... not good! We are KVM w/ NFS. It looks

Re: System VMs not migrating when host down

2018-02-15 Thread Simon Weller
Hey Andrija, So it sounds like your primary storage isn't enforcing an exclusive lock. How is your storage exposed to ACS? We've found that HA doesn't work at all with a host failure on KVM, as those VMs will never be restarted until the host is either recovered, or the host is removed from

[PROPOSAL] reducing VR downtime on upgrade

2018-02-15 Thread Daan Hoogland
The intention of this proposal is to have a way forward to reducing maintenance downtime for virtual routers. There are two parts to this proposal; 1. Dealing with legacy routers and replacing them before shutting down. 2. Unifying router embodiments and making use of redundancy mechanisms