Hi, This is my setup:
1. I have Two vMware-ESXI hosts with one virtual machine (RHEL 7.4) on each. 2. On my physical machine, I have four vmnic --> vmnic 0,1 for uplink going to switchA and switchB --> vmnic 2,3 for heartbeat corosync traffic (direct connect to other ESXI host) 3. I plan on clustering my two virtual machines via corosync and create a virtual-IP via pacemaker. 4. I plan on using the uplink interface for data and totem interface for corosync packets(heartbeat messages). 5. These two virtual machines doesnt need for a shared storage, or a shared LUN because the application is, by nature, a standalone application that doesnt need to have a centralized location as it does not store any data that needs to be synchronized between two servers. 6. I have a PC that only needs to contact the Virtual IP of the rhel virtual servers. 7. Seamless failover from primary to secondary is not required. 8. Active/Passive setup Given the setup above, 1. Is there any drawbacks? 2. Do I need fencing? Can you explain me by giving a scenario on the above setup? What instances will occur if I didnt put a fence device? 3. If I need a fence device? what fence device you recommend? SAN, vmWare, or PDU? Thanks, imnotarobot
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