I have a TS-453A which I upgraded from 4 to 8gb and it is taking nearly an hour for it to reboot. I have Red Hat full blown Linux boxes that take at most 2-3 minutes to reboot - although they are on machines with a faster CPU and 2 to 4 times more RAM. Still QNAP NAS with a Celeron and 8gb of RAM shouldn’t take an hour to reboot. Having to wait this long to reboot often prompts me put off firmware updates. This is atrocious. Guess I’ll run a RAM test to make sure its all good.
My TS-251+ (4GB) completes its startup in about 10 minutes, and that’s with around 3 dozen user QPKGs installed.
Are you running any virtual machines or docker containers on this NAS? If you disable Container Station and Virtualization Station and reboot, is the startup noticeably faster?
Is this NAS using SMR HDDs?
Did the issue you mentioned occur after upgrading the RAM from 4GB to 8GB? If so, could you please try removing the additional RAM and rebooting to see if that helps? Also, if possible, please provide us with the model of the RAM module. Thanks!