i have 2 installations with user manager at rb951ui-2hnd and rb1100hx2.
the problem rarely is that database is getting corrupted and users cannot access internet. i dont know if its power outage or something else.
also small storage size 128mb. i know i can use a usb flash drive or an sd card.
i will have a new installation and i have to choose between rb1100hx2 with SD card or a "intel i3 pc with ssd" with windows,vmware running ros.
the good thing about vmware is that you can take snapshots, and also have a secondry storage disk 1gb for example for user manager database.
Feel free to reply in which hardware you install your user manager!