I have been going through documentation but it does not really go into depth for me to understand how does persistent volumes work with pod/node failovers. Let me explain the questions I am having
Let's say I have a cluster on EC2 with 2 minions. Since a single EBS volume can be mounted only on one EC2 instance, I need to create 2 EBS volumes (lets say 50GB each). If I have 10 pods each requiring 10GB space, my understanding is that k8s will randomly schedule these on 2 minions. 1. Question is, how does fail-over work? If a docker fails, is it started on same node with exact same PVC? If it moves over to the other minion, EBS cannot move with it (Since 50GB EBS is mounted on minion1 and 4 other pods are using rest of 40GB). Does it mean any failed pods/dockers MUST be started on same node? 2. Since EBS can only be mounted within same zone, multi zone setup essentially means EBS can not be used. EFS is too costly and also have low shared bandwidth. So EFS is not viable. What do we use then? Is there any article / documentation going into details of how to make persistent storage work? thanks Ravi -- You received this message because you are subscribed to the Google Groups "Kubernetes user discussion and Q&A" group. To unsubscribe from this group and stop receiving emails from it, send an email to kubernetes-users+unsubscr...@googlegroups.com. To post to this group, send email to kubernetes-users@googlegroups.com. Visit this group at https://groups.google.com/group/kubernetes-users. For more options, visit https://groups.google.com/d/optout.
