Hello Victor, As far as I tested the HA in KVM, it only get in action if:
i. The computing offer you are using to create the guest VM has the Offer HA flag on; ii. The KVM should crash unexpectedly; To force a crash you can simulate a kernel panic using the command: echo c > /proc/sysrq-trigger. I had some issues that one KVM agent, for some unknown reason, was disconnecting from the orchestrator, although it was working and the guest VM were running. In this situation I couldn't do anything with the guests VMs (move, reload, shutdown) and the HA didn't work. Hope you find this information useful. Regards, Audrey ----- Mensagem original ----- De: "Ivan Kudryavtsev" <kudryavtsev...@bw-sw.com> Para: "victor" <vic...@ihnetworks.com> Cc: "users" <users@cloudstack.apache.org> Enviadas: Quarta-feira, 12 de julho de 2017 6:55:00 Assunto: Re: KVM hypervm and HA You should mark VM service offering as HA-enabled and ACS will start vms automatically. VR, SSVM, CP VMs are also started automatically as needed. 2017-07-12 16:53 GMT+07:00 victor <vic...@ihnetworks.com>: > Hello, > > Thanks for the update. When a single vm in "hypervm1" is stopped or down, > it gets automatically started in the second vm. But when the entire > hypervm1 server is down completely, the vm' inside it is not getting > started in the secondary "hypervm2". Is the feature is version specific. > > Regards > Victor > > > On 07/12/2017 08:26 AM, Ivan Kudryavtsev wrote: > >> Hi, Victor. They both will be moved automatically to a new host by ACS. >> >> 12 июл. 2017 г. 5:23 пользователь "victor" <vic...@ihnetworks.com> >> написал: >> >> Hello, >>> >>> I have a cloudstack system with one management server, one nfs server >>> and >>> two kvm hypervm host servers. Initially I configured cloudstack with >>> hypervm1, so the system vm and console proxy gets created in it. Lately >>> I >>> have added hypervm2 and created few instances in it. So my doubt is the >>> following. >>> >>> -------- >>> >>> 1, If hypervm 1 is down which contain system-vm,console-proxy and >>> router-vm, then what will happen. >>> >>> 2, If hypervm 1 is down completely and we couldn't make it up, will the >>> system vm,console proxy and router vm will be switched to hypervm2 >>> automatically. If it is not automatically, then is there any option for >>> that. >>> >>> ==== >>> >>> Regards >>> >>> Victor >>> >>> >>> > -- With best regards, Ivan Kudryavtsev Bitworks Software, Ltd. Cell: +7-923-414-1515 WWW: http://bitworks.software/ <http://bw-sw.com/>
