I have a tower built on NUCs built to serve email/web/VPN/wifi/etc
Only after the California Heatwave did I realize that you can’t just stash the whole system in a closet without some FANs for cooling — The Manufacturer suggested Amazon Infinity Fans, which have now worked beautifully.
smartctl -ax /dev/nvme0
Model Number: KINGSTON SNV3S4000G
Serial Number: 50026B72837023EB
Firmware Version: P3DR0A27
PCI Vendor/Subsystem ID: 0x2646
IEEE OUI Identifier: 0x0026b7
Total NVM Capacity: 4,000,787,030,016 [4.00 TB]
Unallocated NVM Capacity: 0
Controller ID: 0
NVMe Version: 1.4
Number of Namespaces: 1
Namespace 1 Size/Capacity: 4,000,787,030,016 [4.00 TB]
Namespace 1 Formatted LBA Size: 512
Namespace 1 IEEE EUI-64: 0026b7 2837023eb5
Local Time is: Fri Jul 31 13:59:04 2026 PDT
Firmware Updates (0x12): 1 Slot, no Reset required
Optional Admin Commands (0x0016): Format Frmw_DL Self_Test
Optional NVM Commands (0x0056): Wr_Unc DS_Mngmt Sav/Sel_Feat Timestmp
Log Page Attributes (0x02): Cmd_Eff_Lg
Maximum Data Transfer Size: 64 Pages
Warning Comp. Temp. Threshold: 75 Celsius
Critical Comp. Temp. Threshold: 80 Celsius
SMART/Health Information (NVMe Log 0x02)
Critical Warning: 0x00
Temperature: 40 Celsius
Available Spare: 100%
Available Spare Threshold: 10%
Percentage Used: 0%
Data Units Read: 1,170,245 [599 GB]
Data Units Written: 13,736,068 [7.03 TB]
Host Read Commands: 14,606,017
Host Write Commands: 181,472,111
Controller Busy Time: 454
Power Cycles: 48
Power On Hours: 4,544
Unsafe Shutdowns: 27
Media and Data Integrity Errors: 0
Error Information Log Entries: 0
Warning Comp. Temperature Time: 0
Critical Comp. Temperature Time: 0
Temperature Sensor 1: 58 Celsius
Temperature Sensor 2: 59 Celsius
Temperature Sensor 3: 40 Celsius
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