Synology NAS tweaks

Check 10GbE NIC (E10G22-T1-Mini) temperature in DSM 7.2.2

There is a list of NICs in a directory: /sys/class/net
10GbE NIC is "eth2".

To find out the temperature of the 10GbE NIC, check the contents of the file: /sys/class/net/eth2/temperature

DS923+ silent fan profile (E10G22-T1-Mini 10GbE NIC + M.2 NVME SSD read-write cache)

1.
Set "Fan Speed Mode" in Control panel to "Quiet mode"

2.
Update files:
/usr/syno/etc.defaults/scemd.xml
/usr/syno/etc/scemd.xml

    <fan_config period="20" threshold="6" type="DUAL_MODE_LOW" hibernation_speed="UNKNOWN">
            <disk_temperature fan_speed="01%40hz" action="NONE">0</disk_temperature>
            <disk_temperature fan_speed="10%40hz" action="NONE">41</disk_temperature>
            <disk_temperature fan_speed="37%40hz" action="NONE">43</disk_temperature>
            <disk_temperature fan_speed="50%40hz" action="NONE">45</disk_temperature>
            <disk_temperature fan_speed="60%40hz" action="NONE">47</disk_temperature>
            <disk_temperature fan_speed="70%40hz" action="NONE">49</disk_temperature>
            <disk_temperature fan_speed="80%40hz" action="NONE">54</disk_temperature>
            <disk_temperature fan_speed="99%40hz" action="NONE">58</disk_temperature>
            <disk_temperature fan_speed="99%40hz" action="SHUTDOWN">61</disk_temperature>

            <m2_temperature fan_speed="01%40hz" action="NONE">0</m2_temperature>
            <m2_temperature fan_speed="25%40hz" action="NONE">48</m2_temperature>
            <m2_temperature fan_speed="50%40hz" action="NONE">52</m2_temperature>
            <m2_temperature fan_speed="60%40hz" action="NONE">54</m2_temperature>
            <m2_temperature fan_speed="70%40hz" action="NONE">56</m2_temperature>
            <m2_temperature fan_speed="80%40hz" action="NONE">58</m2_temperature>
            <m2_temperature fan_speed="90%40hz" action="NONE">60</m2_temperature>
            <m2_temperature fan_speed="99%40hz" action="NONE">62</m2_temperature>
            <m2_temperature fan_speed="99%40hz" action="SHUTDOWN">70</m2_temperature>

            <cpu_temperature fan_speed="01%40hz" action="NONE">0</cpu_temperature>
            <cpu_temperature fan_speed="30%40hz" action="NONE">40</cpu_temperature>
            <cpu_temperature fan_speed="45%40hz" action="NONE">44</cpu_temperature>
            <cpu_temperature fan_speed="50%40hz" action="NONE">47</cpu_temperature>
            <cpu_temperature fan_speed="55%40hz" action="NONE">55</cpu_temperature>
            <cpu_temperature fan_speed="65%40hz" action="NONE">65</cpu_temperature>
            <cpu_temperature fan_speed="70%40hz" action="NONE">78</cpu_temperature>
            <cpu_temperature fan_speed="99%40hz" action="NONE">86</cpu_temperature>
            <cpu_temperature fan_speed="99%40hz" action="SHUTDOWN">95</cpu_temperature>

            <nic_temperature fan_speed="01%40hz" action="NONE">0</nic_temperature>
            <nic_temperature fan_speed="01%40hz" action="NONE">50</nic_temperature>
            <nic_temperature fan_speed="25%40hz" action="NONE">60</nic_temperature>
            <nic_temperature fan_speed="70%40hz" action="NONE">78</nic_temperature>
            <nic_temperature fan_speed="99%40hz" action="NONE">88</nic_temperature>
            <nic_temperature fan_speed="99%40hz" action="SHUTDOWN">100</nic_temperature>
    </fan_config>