Be aware that the documentation referenced
<https://docs.oracle.com/database/122/UPGRD/deprecated-features-oracle-database-12c-r2.htm#UPGRD-GUID-2ABD2D83-F627-4BE5-87D8-B46B9CFCE5C7>
in this community thread does not substantiate what is instead
documented HERE
<https://docs.oracle.com/en/database/oracle/oracle-database/12.2/upgrd/desupported-features-oracle-database-12c-r2.html#GUID-2ABD2D83-F627-4BE5-87D8-B46B9CFCE5C7>.
*Deprecation* does not mean *mandatory*, particularly as the last
sentence of the substantiating document states, "/If your Oracle
Database files are stored on a shared file system, then you can continue
to use the same for database files, instead of moving them to Oracle ASM
storage./"
Having the vote disk in particular on a different clustered storage than
the database files essentially negates the concept of vote disk. So I
believe that this deprecation notice is Oracle's way of both favoring
ASM as well as nudging people back to the base concept, where the OCR
and vote disk reside on the same storage as the database files. I don't
see anywhere where Oracle has ever asserted that one type of clustered
storage is better or worse than others, but they've just stated their
preference for the type they themselves support, which is ASM.
Because ASM did not support the OCR and vote disk in its early versions,
many users established run books which employed other clustering
solutions like NFS or OCFS2 for those file structures, and ASM for
everything else, which was the only feasible and documented
configuration originally. Chances are good that many DBAs still believe
that is the case. So, I think Oracle is mostly nudging people to
realign with the basic concept, now that ASM does support OCR and vote
disk. Just speculation, your mileage may vary...
On 11/19/18 10:20, Rakesh Ra wrote:
Hmmm I just read the below where in it states ASM is mandatory to store voting files and ocr... I think this will be challenge for companies who rely on NFS highly..
https://community.oracle.com/thread/4058349
On Mon, Nov 19, 2018, 23:11 Rakesh Ra <rakeshra.tr@xxxxxxxxx <mailto:rakeshra.tr@xxxxxxxxx>> wrote:
All,
18c installation guides is not clear about whether we can install
grid infrastructure on dNFS ?? Is that possible?? All I see in the
guide is about ASM?? Is it mandatory to have ASM??
Thanks,
Rakesh RA
