mkerst,
The first two means some component of a disk shelf (i.e. enclosure, fan, power supply) has failed on your controller. In a nutshell, call Technical Support as soon as possible to get this issue resolved.
The last event has to do with thin provisioning. It means you've given-out or "committed" more space than you physically have available in the aggregate. You've committed 22.6 TB out of a 12.9 TB aggregate, so you're over-committed. This isn't necessarily a bad thing, but you need to decide how comfortable you are with thin provisioning and at what level of over-commitment you want to stop at.