問題文
Before a Grid Infrastructure upgrade, a DBA wants the installer to verify that the system is ready without changing anything. Which statement describes the dry-run upgrade mode?
選択肢
- The cluster verification utility is run with the upgrade option, and it writes the readiness of every node into the cluster registry, so that the installer can read it later.
- A new Grid home is created and the installer is started with the dry-run flag, and the installer checks the storage, the network, and the requirements without running any of the configuration tools.
- The existing Grid home is used and the installer is started with the dry-run flag, and the installer checks the storage, the network, and the requirements without running any configuration tool.
- A new Grid home is created, and the installer is started with the dry-run flag, and the installer performs the upgrade on one node, so the result can be inspected before the other nodes follow.