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To be honest, Fernando Simon has already documented all the steps needed in ZDLRA patching . So this post is more like a reference post for me and it points to the links on his blog. One thing he could change though are the post titles. He also agrees 😉 <a href="https://twitter.com/amardeep_sidhu/status/1370304085245661192?ref_src=twsrc%5Etfw">March 12, 2021</a> ZDLRA patching is broadly divided into two parts. First part is where you patch the RA library and Grid & DB homes. Second part includes compute node & storage cell image patch and patches for IB/RoCE switches. Second part is exactly similar to Exadata except that it is bit restricted in terms of image versions that you can use. Only the versions that are certified for ZDLRA can be used. Also the RA library version and the Exadata image version should be compatible with each other. So if you are planning to patch only one part; RA library or the image, make sure that both the components stay compatible. The MOS note that has all these details is 1927416.1. This note should be the first place to go when you are planning to patch a ZDLRA. The steps for upgrade/patch, image patching are given in MOS note 2028931.1. There is another note 2639262.1 that discusses some of the known issues that you may face while doing the patching. It is important to review all three notes before you plan to patch. ...

Faced this while running installer for setting up a 2 node RAC setup (version 19.8) on an Oracle SuperCluster. The error reported in the log is: [FATAL] [INS-44000] Passwordless SSH connectivity is not setup from the local node node1 to the following nodes: [node2] [INS-06006] Passwordless SSH connectivity not set up between the following node(s): [node2] From the error it appears that the ssh is not setup between two nodes but actually that is not the case. Here the error message is bit misleading. It turned out to be an issue with scp with openssh version 8.x. Running the setup with -debug option gives the clue: ...

Faced this while running installer for setting up a 2 node RAC setup (version 19.8) on an Oracle SuperCluster. The error reported in the log is: </div>From the error it appears that the ssh is not setup between two nodes but actually that is not the case. Here the error message is bit misleading. It turned out to be an issue with scp with openssh version 8.x. Running the setup with -debug option gives the clue: <div class="wp-block-syntaxhighlighter-code ">``` <pre class="brush: plain; title: ; notranslate" title=""> <protocol error: filename does not match request> Workaround is to pass the -T option to scp to ignore the new checks. You can rename the scp binary to something like scp.original and create a new shell script there like this: ...

Faced this while running installer for setting up a 2 node RAC setup (version 19.8) on an Oracle SuperCluster. The error reported in the log is: From the error it appears that the ssh is not setup between two nodes but actually that is not the case. Here the error message is bit misleading. It turned out to be an issue with scp with openssh version 8.x. Running the setup with -debug option gives the clue: ...

Faced this while running installer for setting up a 2 node RAC setup (version 19.8) on an Oracle SuperCluster. The error reported in the log is: [FATAL] [INS-44000] Passwordless SSH connectivity is not setup from the local node node1 to the following nodes: [node2] [INS-06006] Passwordless SSH connectivity not set up between the following node(s): [node2] From the error it appears that the ssh is not setup between two nodes but actually that is not the case. Here the error message is bi t misleading. It turned out to be an issue with scp with openssh version 8.x. Running the setup with -debug option gives the clue: ...