TerraMaster Power Management

TPM (TerraMaster Power Management) is a proprietary power management feature developed by TerraMaster specifically for USB direct-attached storage devices. Representing a unique technological innovation, TPM is designed to meet users’ daily storage needs for energy efficiency, security, and faster data response.

Reduce Data Security Risks

Compared with the traditional power-off mode, TPM shutdown follows a systematic process: safe ejection of the disk → completely writing back cached data → parking the hard drive heads → cutting off power. This process effectively prevents damage to the hard drive heads caused by sudden power loss during high-speed operation, thereby protecting the hard drive and data security, reducing data security risks by 42%.

    Safe Hard Drive Removal

Complete Cache Data Write-Back

    Hard Drive Head Parking

    Power Off

Unattended Automated Management

TPM features power-on memory function, allowing the device to automatically start after a power outage. Under normal shutdown conditions, the device remains off when power is restored. After an unexpected power failure, the device will automatically restart once power is resumed. This feature is particularly suitable for USB storage devices used in conjunction with servers, NAS, and other systems, enabling unattended automated management.

Extend Disk Lifespan

When a server or computer enters sleep/shutdown mode, or when a USB device is safely ejected, TPM immediately puts the storage device into sleep mode, stopping the hard drive and fan. This significantly reduces the operating time of the hard drive, lowering motor energy consumption by up to 50%, and effectively extends the disk’s lifespan by 37%.

More Flexible Mode Selection

TerraMaster TPM provides two sleep management modes: Active (Response Mode) and Power Save (Energy-Saving Mode). The device features a mode switch, allowing users to freely select the mode according to their actual needs.

Power Save (Energy-Saving Mode) 

In this mode, the storage device and all hard drives enter a deep sleep state, with mechanical components and electronic circuits fully stopped. In this mode, only the essential controller remains active for wake-up standby, reducing power consumption by up to 98%. This mode is ideal for home users with high energy-saving requirements.

Deep Sleep

98% Energy Saving

Active (Response Mode) 

In this mode, the device and its electronic circuits remain operational, the controller is on standby, disks spin down, and the cooling system runs. Energy consumption is reduced to 70%, while the device wake-up speed is significantly improved—up to 200% faster for HDDs7 and 600% faster for SSDs. This mode is suitable for commercial users with higher efficiency requirements and lower requirements for energy saving.

Does not enter sleep mode

Device and electronic circuits remain active

Maintains high performance

Notes:

1. The device features a long press (3 seconds) for shutdown and a short press for    power-on. This strategy effectively reduces the risk of accidental shutdowns caused by inadvertent presses, which could lead to data corruption.Test Method: Simulated 100 accidental presses; compared with TerraMaster DAS devices without long-press shutdown. During high-frequency, large-volume read/write operations, the disk may exhibit RAW-like errors. Please note that disk age, read/write status, and other factors may affect test results; actual performance may vary.
2. Compared with devices without TPM.
3. The device powers off after the hard drive is safely removed and the disk heads are retracted. This prevents platter scratches or bad sectors caused by the disk heads striking the platters during sudden power loss, and reduces abnormal increases in the hard drive’s Power-Off Retract Count.
4. Compared with devices without TPM and with fan cooling.
5. Wake-up time is relatively long: approximately 21 seconds for HDDs and 14 seconds for SSDs on average. Each wake-up from this mode increments the “power_cycle_count” value in the disk's SMART information.
6. Compared with devices without TPM and with fan cooling.
7. This is in comparison with the Power Save mode: under laboratory conditions, HDDs and SSDs enter a deep sleep state in Power Save mode.
8. Wake-up in Active mode does not increase power_cycle_count, but power_on_hours continues to accumulate. This mode is the factory default.