Kategorie: Linux

Oracle database18c (exadata only) running on vbox now :)

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The Oracle Database 18c software is available for Exadata installations and can be downloaded from https://edelivery.oracle.com.

  • This is in line with Oracle’s Cloud & Engineered Systems First policy.
  • The 18c version is announced for onprem for July 2018.

But attention please !!!

  • My first Oracle Database 18c installation is now running on a virtual box.
  • This is of course not supported, but great for playing with new features.

my „exadata in a box“ 🙂

Many thanks to @andrewlacy2  for his research and support.

Here are the steps i have taken:

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Linux guest crash cycles bacause of VMNET3 Bug in VMware ESX 6.5 Version 13

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Behavior and Analysis

After we upgrades the VMWARE Version of an Actifio Appliance from ESX 6.5 Version 9 to 13 (the actual one) this Linux Guest crashed with VMware core dump again and again. Problem analysis was horrible.

Most time VMware HA had restarted the guest it crashed again if i tried to connect via SSH console. So it was a night mare in problem analysis but much time and a lot of retries later we succeded in scp download the vmcore files.

So we could analyse it and found the reason:

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orabase doesn’t show the current oracle base path

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As i noticed today „orabase“ command does not print the ORACLE_BASE path on standard out in my test environment.

 

Whats wrong? Is it a bug or a feature ?

 

What i expected …

  • Executing $ORACLE_HOME/bin/orabase show the oracle base directory without defined environment variable ORACLE_BASE.
  • This information is stored in $ORACLE_HOME/install/orabasetab during the installation process.
  • The orabasetab file is used to track Oracle Home associated with Oracle Base

But i got this:

My analysis steps …

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