Which two tasks must be performed before launching the Oracle universal installer to install Oracle Database Software for RAC?
A.
ssh user equivalence for the Oracle software owner must be configured on all cluster nodes.
B.
Grid infrastructure must be installed on all cluster nodes where the Database software will be installed.
C.
ssh user equivalence for the Oracle software owner must be configured on all cluster nodes where the Database Software will be installed.
D.
Grid infrastructure must be installed on all cluster nodes.
E.
The Clusterware stack must be up on all cluster nodes.
Explanation:
A: You must enable SSH User Equivalency on Cluster Nodes.
https://docs.oracle.com/database/121/CWLIN/manpreins.htm#CWLIN407
Hi
I would say D and E (but B may also be correct)
For me configuring ssh user equivalence is not mandatory before launching Oui for database software.
Any idea?
Regards
Hi edge
A,D CORRECT
Passwordless SSH configuration is a mandatory installation requirement. SSH is used during installation to configure cluster member nodes, and SSH is used after installation by configuration assistants, Oracle Enterprise Manager, OPatch, and other features.
Automatic Passwordless SSH configuration using OUI creates RSA encryption keys on all nodes of the cluster. If you have system restrictions that require you to set up SSH manually, such as using DSA keys, then use this procedure as a guide to set up passwordless SSH.
In the examples that follow, the Oracle software owner listed is the grid user.
If SSH is not available, then OUI attempts to use rsh and rcp instead. However, these services are disabled by default on most Linux systems.
https://docs.oracle.com/cd/E11882_01/install.112/e41961/manpreins.htm#CWLIN407
It should be B&E. ( B&D are same, however B is more appropriate)
A&C … This can be setup during installation.
ssh equivalency can be configured through OUI
For those saying B is more appropriate over D, what about in a Flex cluster? The database can run on a cluster node but access ASM on another node. I would therefore just go with D
I think that has a mistake here, this is about a RDBMS Installation and Grid Infrastructure and where are an RAC RDBMS, then, must be an Grid Infrastructure installed (this is the base to clusterware). Not necessary an ASM instance!
But, another think is, in the exam, the text is: “D. Grid infrastructure must be up on all cluster nodes where the Database software will be installed.”. If i correctly remember!
But, can be: “D. The Clusterware stack must be up on all cluster nodes where the Database software will be installed.”
I don’t remember exactly!
But, if i have a RAC RDBMS, them i need a Clusterware and the Grid Infrastructure in this case is a synonym to this, they are installed together
E is wrong i think ,the Oracle RDBMS binaries does not have any dependency to GI binaries .
A,D looks correct to me.
Oracle Database 12c: Clusterware Administration Student Guide says: Oracle Clusterware has become the required clusterware for Real Application clusters (RAC).
This question is the same of question N.3
I think BD
If you choose B, It will contradict D.
You install GI on all cluster nodes or Just the nodes you need to install RDBMS ??
I think Answer is D,E
Agree D,E
ssh equivalence can still be set up during the installation, after the installer is launched.
hi orb, did you take the exam?
A is wrong : because you can configure ssh user equivalence during installation.
B is wrong: GI must be installed on all nodes (not only nodes where the Database software will be installed)
C is wrong : because you can configure ssh user equivalence during installation.
DE are the correct answers.