Busy setting up a bunch of VMs (using Oracle VM) that will be running Oracle 11.2 databases, on ext4 file systems as datafile storage location. Database size will not peak 10Gb, and dedicated virtual disk (for db) per VM will be assigned. Single db client is a local dedicated Java app.
Is it worth while setting bytes-ionode, ionode size, or block size, to non default values, in order to optimise Oracle db I/O on ext4 in a virtualised environment? (ASM is not a choice)
I googled, but ext4 performance hints (and info from RedHat) are about customising the journal and issues like when allocation occurs. Did not see anything specific regarding mucking around with ionodes and block sizes.
Any comments and URL pointers will be appreciated.