Currently available in the following regions:
SAP HANA on Azure (Large Instances): Official name for the offer in Azure to run HANA instances in on SAP HANA TDI certified hardware that is deployed in Large Instance stamps in different Azure regions
Tainted kernel means a condition that likely is out of support for the upstream Linux developers. Most maintainers on the LKML will ask for a reproduction of the problem on a non tainted kernel.
Proprietary or out of tree kernel modules are a very common reason for this to be reported. But not the only one, for example a processor logging a machine check ...
truncate table _SYS_STATISTICS.STATISTICS_ALERTS_BASE;
have a look at SAP note 2170779. I usually have a cron job getting rid of older alerts with the "delete older entries" statement described in the note.