Thanks Javier
Would you suggest we turn off the max shared memory setting to 0?
The total memory on the machine is 198GB of which 180GB has been allocated to ASE.
We had a reboot more than 10 days ago. The procedure cache size hit 98% so we had an emergency shutdown.
The 100% peaks are random but have gotton progressivly worse over the last week.
We have run update statistics and update index statistics a few times on some large tables during the week. Not sure if that had an impact on the system.
The backup server is configured to dump every 15minutes.