At several companies I worked for, there was a lot of confusion about the licensing model of Oracle. The general feeling was that they paid too much for their use of Oracle products, and they were not certain of their compliancy. This post will try to give some clarity about this issue.
Since Oracle launched the Oracle Database Appliance it is clear that only the Enterprise Edition is allowed on the machine. But for me it was still a little bit fuzzy if and what kind of licensing requirements is needed. More direct : may the ODA be licensed on NUP´s ? […]
Received a pdf from Oracle with the new features of the Oracle Database Appliance (when you are using the OracleVM-option).
Among other things, the two last sheets about the licensing had my attention too. I’m just showing the slides, haven’t worked with it, so I can’t tell you in detail the […]
The second and final post about an issue with a RAC-configuration with two SAN's. Problem was a i/o-freeze of minutes when crashing one of the two SAN's. The first post I ended with a 'cliffhanger' because we had a solution, but not tested it yet.
Since 184.108.40.206 there's a new parameter, "_datafile_write_errors_crash_instance" to prevent the intance to crash when a write error on a datafile occurs. But.. should I use this or not.
With this setup we are facing the issue that if we loose a complete SAN, the IO’s to the ASM diskgroups will be blocked for approx 3 till 4 minutes. Oracle does not like this. After 70 seconds after a freeze, rdbms is starting to reboot (expected behaviour).