I have a DS923+ configured with 2 x 12 TB Synology Enterprise Drives (HAT5300), the network upgrade module and 2 X Synology SSDs (SNV34100-400G). The drives appear to be active continually based on the noise coming from the unit. Is this an indication that I d not have the DS923+ configured incorrectly?
Not necessarily. Unless the unit goes into hibernation mode, there is always some activity. If there is intensive activity over a prolonged period, some tasks could be running.
But the unit is rarely wholly silent.