Re: NFS, file system cache and shared_buffers

Jeff Janes wrote:
>>> All that said, there has always been a recommendation of caution around
>>> using NFS as a backing store for PG, or any RDBMS..
>> 
>>     I know that Oracle recommends it - they even built an NFS client
>>     into their database server to make the most of it.
> 
> Last I heard (which has been a while), Oracle supported specific brand named implementations of NFS,
> and warned against any others on a data integrity basis.

I couldn't find any detailed information, but it seems that only certain
NFS devices are supported.

> Why would they implement their own client?  Did they have to do something special in their client to
> make it safe?

I think it is mostly a performance issue.  Each backend mounts its own copy
of the data files it needs.

Yours,
Laurenz Albe