First, let’s define what split-brain is. Each replica can be either connected or disconnected towards to the other. If the replica spontaneously goes to StandAlone. It means that it refuses to accept the state and don’t want to synchronize with the other. This is a classic split-brain situation.
Solving the split-brain for two replicas is done in the same way as for multiple replicas.
First, let’s decide which replica we want to synchronize with. To do this, look into
Over the past few years of tight work with LINSTOR and DRBD9, I have accumulated a some amount of problems and solutions for them. I decided to collect all of them into single article. Not sure that you will face exactly the same problems, but now you could at least understand the mechanics of managing and troubleshooting the DRBD9-devices.
There is not much information on this matter on the Internet. Hope you’ll find it useful in case if you use or plan to use LINSTOR.
Andrei Kvapil joins the adventure to discuss Kubernetes with Jeffrey Groman.
Andrei breaks down how he and his company needed to set up Kubernetes to manage their blade server setup and how they wound up running Kubernetes in Kubernetes to gain the characteristics they needed. Panel
Learn more about LINBIT’s SDS solution, its native integration with OpenNebula, and the many benefits it provides to companies using both technologies together. Our guest speakers for this event will be Yusuf Yildiz (Solutions Architect at LINBIT) and Andrei Kvapil (Cloud Architect / DevOps Engineer at WEDOS Internet). For more details, visit: https://opennebula.io/webinars/
Find out how Andrei at WEDOS built a 600 nodes strong high availability storage environment using #DRBD & #LINSTOR for #Kubernetes, #OpenNebula and #Proxmox. #LinstorDays
