[opensuse] Experiences with HA - Pacemaker, Heartbeat, Corosync?
Hello, I'm thinking about some HW redundancy of our server. I'd like to have second machine (slave) and when the first one (master) is down, the second should take place and provide all services. But the HW is bit limited now. I have one physical machine (tower server) without STONITH and if possible, I'd like to use as a slave virtual machine (in same network). So the best solution might be just keep one machine, good backups and in case of HW crash restore onto new HW... Richard Brown pointed me to Pacemaker (links are below). I have some doubts about possibility to use it in my case and I'd like to hear if someone is using it and preferably has possible experience with those tools. :-) https://www.youtube.com/watch?v=e9fElUiCdcY https://en.wikipedia.org/wiki/STONITH https://software.opensuse.org/package/ha-cluster-bootstrap https://www.suse.com/documentation/sle-ha-12/ http://clusterlabs.org/ http://drbd.linbit.com/ http://www.linux-ha.org/wiki/Main_Page Sincerely, V. -- Vojtěch Zeisek Komunita openSUSE GNU/Linuxu Community of the openSUSE GNU/Linux http://www.opensuse.org/ http://trapa.cz/
On Mon, Nov 30, 2015 at 11:23 AM, Vojtěch Zeisek <vojtech.zeisek@opensuse.org> wrote:
Hello, I'm thinking about some HW redundancy of our server. I'd like to have second machine (slave) and when the first one (master) is down, the second should take place and provide all services. But the HW is bit limited now. I have one physical machine (tower server) without STONITH and if possible, I'd like to use as a slave virtual machine (in same network). So the best solution might be just keep one machine, good backups and in case of HW crash restore onto new HW... Richard Brown pointed me to Pacemaker (links are below). I have some doubts about possibility to use it in my case and I'd like to hear if someone is using it and preferably has possible experience with those tools. :-)
Well, pacemaker works as advertised. It has extensive collection of resource agents for common and not very common applications. But it is also far from being turnkey solution - you need to understand how High Availability solutions work in general, how pacemaker implements HA, how your application supports HA etc. If you never have done it before (any HA), this means some learning curve. Regarding STONITH - any HA solution requires fencing for failed resources. Be it STONITH or something else. Pacemaker is pretty flexible in this respect. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 30/11/15 09:23, Vojtěch Zeisek wrote:
Hello, I'm thinking about some HW redundancy of our server. I'd like to have second machine (slave) and when the first one (master) is down, the second should take place and provide all services. But the HW is bit limited now. I have one physical machine (tower server) without STONITH and if possible, I'd like to use as a slave virtual machine (in same network). So the best solution might be just keep one machine, good backups and in case of HW crash restore onto new HW... Richard Brown pointed me to Pacemaker (links are below). I have some doubts about possibility to use it in my case and I'd like to hear if someone is using it and preferably has possible experience with those tools. :-) https://www.youtube.com/watch?v=e9fElUiCdcY https://en.wikipedia.org/wiki/STONITH https://software.opensuse.org/package/ha-cluster-bootstrap https://www.suse.com/documentation/sle-ha-12/ http://clusterlabs.org/ http://drbd.linbit.com/ http://www.linux-ha.org/wiki/Main_Page Sincerely, V.
Hi We made one for a file server using our teacher's instructions: http://linuxcostablanca.blogspot.com.es/2014/07/samba4-cluster-for-ad-drbd-o... It's time consuming but fun. We had a competition. The record on hardware is start to finish in 3 hours. Tell us if you have a go yourself. HTH -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
Dne Po 30. listopadu 2015 10:40:28, buhorojo napsal(a):
On 30/11/15 09:23, Vojtěch Zeisek wrote:
Hello, I'm thinking about some HW redundancy of our server. I'd like to have second machine (slave) and when the first one (master) is down, the second should take place and provide all services. But the HW is bit limited now. I have one physical machine (tower server) without STONITH and if possible, I'd like to use as a slave virtual machine (in same network). So the best solution might be just keep one machine, good backups and in case of HW crash restore onto new HW... Richard Brown pointed me to Pacemaker (links are below). I have some doubts about possibility to use it in my case and I'd like to hear if someone is using it and preferably has possible experience with those tools. :-) https://www.youtube.com/watch?v=e9fElUiCdcY https://en.wikipedia.org/wiki/STONITH https://software.opensuse.org/package/ha-cluster-bootstrap https://www.suse.com/documentation/sle-ha-12/ http://clusterlabs.org/ http://drbd.linbit.com/ http://www.linux-ha.org/wiki/Main_Page Sincerely, V.
Hi We made one for a file server using our teacher's instructions: http://linuxcostablanca.blogspot.com.es/2014/07/samba4-cluster-for-ad-drbd-o cfs2-ctdb.html It's time consuming but fun. We had a competition. The record on hardware is start to finish in 3 hours. Tell us if you have a go yourself. HTH
This looks very nice. Thank You for the reports. Now I must go to study more and think about it little bit before the action. Yours, V. -- Vojtěch Zeisek Komunita openSUSE GNU/Linuxu Community of the openSUSE GNU/Linux http://www.opensuse.org/ http://trapa.cz/
participants (3)
-
Andrei Borzenkov -
buhorojo -
Vojtěch Zeisek