Run flashgrid-cluster command to confirm that all nodes are up and no nodes are shown as Inaccessible.
Kill all ohasd.bin reboot processes on the database nodes where CRS fails to start:
ps -ef | grep "ohasd.bin reboot" | grep -v grep | awk '{print $2}' | xargs kill -9
Start CRS: crsctl start crs -wait
https://blog.pythian.com/services-not-starting-automatically-with-crs-after-reboot/
http://www.dba-oracle.com/t_rac_crs_start_failure.htm
http://www.dbaref.com/troubleshooting-rac-issues/howtotroubleshootgridinfrastructurestartupissues
https://www.thegeekdiary.com/troubleshooting-oracle-rac-node-evictions-reboots-11-2-and-above/
How to Troubleshoot Grid Infrastructure Startup Issues [ID 1050908.1]
Grid Infrastructure clusterware startup sequence, please refer to note 1053147.1
http://blog.itpub.net/21980353/viewspace-2141629/
https://dbamarco.wordpress.com/tag/clusters-2/
https://www.hhutzler.de/blog/troubleshooting-clusterware-startup-problems/
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