[ClusterLabs] HA-Cluster, UPS and power outage - how is your setup ?

[Lentes, Bernd]

Hi,

we just experienced two power outages in a few days.
This showed me that our UPS configuration and the handling of resources on the cluster is insufficient.
We have a two-node cluster with SLES 12 SP5 and a Smart-UPS SRT 3000 from APC with Network Management Card.
The UPS is able to buffer the two nodes and some Hardware (SAN, Monitor) for about one hour.
Our resources are Virtual Domains, about 20 of different flavor and version.

Our primary goal is not to bypass as long as possible a power outage but to shutdown all domains correctly after a dedicated time.

I'm currently thinking of waiting for a dedicated time (maybe 15 minutes) and then do a "crm resource stop VirtualDomains" in a script.
I would give the cluster some time for the shutdown (5-10 minutes) and afterwards shutdown the nodes (via script).
I have to keep an eye on if both nodes are running or only one of them.

How is your approach ?

Bernd

-- 

Bernd Lentes 
System Administrator 
Institute for Metabolism and Cell Death (MCD) 
Building 25 - office 122 
HelmholtzZentrum München 
bernd.lentes at helmholtz-muenchen.de 
phone: +49 89 3187 1241 
fax: +49 89 3187 2294 
http://www.helmholtz-muenchen.de/mcd 


Public key: 

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