Note: Running yum updatewithout first stopping Oracle and FlashGrid services may result in the services restarting non-gracefully during the update.
To update OS on a running server, perform the following steps
Create a backup snapshot of the OS disk
a. Flush OS buffers:
# sync; syncb. Create a snapshot of the OS disk using the cloud console or CLI
- Stop all running databases.
Stop Oracle High Availability Services:
# crsctl stop hasStop FlashGrid Storage Fabric services:
# flashgrid-node stopInstall OS updates:
# yum updateReboot the server
# sync; sync # reboot
- On the server run
flashgrid-health-checkcommand to verify that the status is good and all checks have passed successfully.