Weekend Learning: Release notes for Exadata 12.1.2.1.0 patch

Obviously the big headline of the patch in MOS document ID 1947476.1 "Exadata 12.1.2.1.0 release and patch (17885582)" is the support for the newest family Exadata member the X5-2 but there is a LOT more information like how sparse grid disks allow for larger virtual sizes and the patch enables Columnar Flash Caching as well.  Check it out and get up to date for all your Exadata needs including some important known issues with the patch!