Hello Dimitre,
what is the problem with direct I/O? You should never run an Oracle database
through page cache anyway :)
I would go with tweaked XFS (e.g. "nobarrier" as this information is usually
not passed through correctly with VMDKs on VMFS, etc.) if it is just one single
instance in this VM.
Best Regards
Stefan Koehler
Independent Oracle performance consultant and researcher
Website: http://www.soocs.de
Twitter: @OracleSK
"Radoulov, Dimitre" <cichomitiko@xxxxxxxxx> hat am 30. Oktober 2018 um 19:12--
geschrieben:
Thank you Chris, Matthew and Niall,
so the question is if performancewise ASM is worth it.
With the default Oracle database settings the I/O on XFS would be
synchronous, right?
And if I understand correctly Note 1987437.1, on Linux you cannot enable
async I/O without turning on direct I/O too.
Regards
Dimitre
