Hi Javier,
we are running 8 productive ASE 15.7-servers spread over the world, 6 of them with ESD#2 and 2 with ESD#3.1. The sizes are about 300 GB / server. The sum of the runtimes is about 30 months.
The ESD#2 has to be run with 2 traceflags to be stable. Now we ran into a new problem (error 839) which was identified as bug, a patch is not yet announced.
The ESD#3.1 has another bug which is patched in a higher ESD.
The problem is: these bugs came up after some time after the upgrades. While the test phase everything seemed stable.
The servers run nearly stable, they may crash (this happened) but without damging the data.
regards
Birgit