What consideration do you need to take when setting up SCDPM Modern Backup Storage with SDD disk?

Question

Hi,
What consideration do you need to take when setting up SCDPM Modern Backup Storage with 4% tired SDD disk? The idea is to reduce the number of Error 40002?

What I have get from Microsoft DPM support is that to reducing the Error 40002, is to have tired SDD disk?

We will set up an HPE Gen 10 server with a disk cabinet. The SSD disk is in the server chassi, and in the disk cabinet there is 12 *12TB disks. Is there any risk to have disks in diffenant chassis? Is the SSD disk only used during the protection job? How stabil is the tired config?

https://learn.microsoft.com/sv-se/system-center/dpm/add-storage?view=sc-dpm-2019

There is no forum for SCDPM?