Seagate Low Current Spinup

Description

Some Synology NAS and Expansion Units do not have enough power to spin-up multiple Seagate large Exos drives during boot-up.

This script avoids the need to buy and install a higher wattage power supply.

It uses Seagate's openSeaChest v24.08.1 to set your Seagate Exos SATA HDDs to stagger their spin-up (PUIS) and enables lowCurrentSpinup.

Power-Up in Standby (PUIS):
PUIS ensures that drives remain in standby mode during system startup and only spin up when accessed

Low Current Spin-Up:
This feature reduces the power draw during spin-up by starting the drives more gradually

NOTE: After running the script you will need to reboot.

Download the script

1. Download the latest version Source code (zip) from https://github.com/007revad/Seagate_lowCurrentSpinup/releases
2. Save the download zip file to a folder on the Synology.
3. Unzip the zip file.

To run the script via task scheduler

See How to run from task scheduler

To run the script via SSH

How to enable SSH and login to DSM via SSH

sudo -s /volume1/scripts/seagate_lowcurrentspinup.sh

If you want to change the drives' settings back run the script with the disable option:

sudo -s /volume1/scripts/seagate_lowcurrentspinup.sh disable

Note: Replace /volume1/scripts/ with the path to where the script is located.

Troubleshooting

If the script won't run check the following:

1. Make sure you download the zip file and unzipped it to a folder on your Synology (not on your computer).
2. If the path to the script contains any spaces you need to enclose the path/scriptname in double quotes:

   sudo -s "/volume1/my scripts/seagate_lowcurrentspinup.sh"

3. Make sure you unpacked the zip or rar file that you downloaded and are trying to run the seagate_lowcurrentspinup.sh file.
4. Set the script file as executable:

   sudo chmod +x "/volume1/scripts/seagate_lowcurrentspinup.sh"

Screenshots

Enabling PUIS and Low Power Spinup

Disabling PUIS and Low Power Spinup