Couple of AWESOME metalink notes on RAC & SCAN

Handy logfile locations, comprehensive command reference (srvctl, crsctl, ocrconfig, olsnodes, cluvfy) and superb diagrams on the RAC startup sequence:


11gR2 Clusterware and Grid Home - What You Need to Know [ID 1053147.1]




SCAN concepts and demo:
11gR2 Grid Infrastructure Single Client Access Name (SCAN) Explained [ID 887522.1]


The demo link inside the SCAN metalink note doesn't work...here's the working link:
http://www.oracle.com/webfolder/technetwork/tutorials/demos/db/11g/r2/grid_rac/11_rac_scan/rac_scan_viewlet_swf.html