Hello Rich,
one clear recommendation: Go with XFS.
XFS has several performance advantages and scales much better. I have done a
lot of performance benchmarks and the result was almost every time the same in
different client environments. However you can benchmark it on your own with
SLOB very easily.
P.S.: Here is a PDF (https://users.soe.ucsc.edu/~sbrandt/290S/xfs.pdf) which
explains one of the performance advantages (e.g. on page 10 - Using Multiple
Processes) as you should use directIO anyway.
Best Regards
Stefan Koehler
Independent Oracle performance consultant and researcher
Website: http://www.soocs.de
Twitter: @OracleSK
Rich J <rjoralist3@xxxxxxxxxxxxxxxxxxxxx> hat am 10. April 2019 um 20:54--
geschrieben:
Hey all,
I'm planning an install/migration of 12.2 on OEL7, no ASM. So, should I use
XFS or Ext4? Underlying storage will be flash-based traditional SAN.
MOS 236826.1 says to use "any filesystem that is supported by the Linux
vendor". MOS 1632127.1 says "Beginning with Oracle Linux 7, XFS is the
default file system and is included with Basic and Premier Support
subscriptions, at no additional charge."
I've had my OEM 13c server using XFS for 18 months without a hiccup, but the
repo DB is about 30x smaller than our ERP DB, with way fewer transactions,
etc.
Anyone have any experiences with XFS or Ext4 on OEL7 that would make them
choose one over the other?
Thanks,
Rich
