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[Help] TOS 7.0.0398 Removing System Disk?

Posted: 31 Jan 2026, 16:18
by WasHE
Hello Guys,

I'm new with the TOS and brave enough to test TOS 7 :)

I have 1 Nvme SSD and 2 HDDs (22 TB and 8 TB) attached to my F2-425 Plus.

I only want my SSD as System Disk and wondering will my data deleted if I remove disk from my HDD 1(22 TB)?

If you ask why, there is constant HDD click sounds and I guess system won't let it to go sleep.

https://imgur.com/a/IQXZvzv

Thanks for your help

Re: [Help] TOS 7.0.0398 Removing System Disk?

Posted: 31 Jan 2026, 16:27
by TMLila
Hello! Thank you for contacting TerraMaster. To troubleshoot your issue more accurately, could you please provide the following information:
1. Which hard drive is the system drive in your current device environment;
2. What type of storage pool has been created for each of the two hard drives.

Re: [Help] TOS 7.0.0398 Removing System Disk?

Posted: 31 Jan 2026, 16:48
by WasHE
Hi, Thank you for your quick response

1. The one with 22 TB is system disk (also the NVMe disk is system disk)

https://imgur.com/zpDTgCS

Here is my storage pools. Each drive has its own pool.

NVMe disk --> System disk and Storage pool 1
HDD 1 (22 TB) ---> System disk and storage pool 2
HDD 2 (8 TB) ---> Storage pool 3

I want to remove System Disk on HDD 1 without loosing and data if possible.

Re: [Help] TOS 7.0.0398 Removing System Disk?  [SOLVED]

Posted: 31 Jan 2026, 17:15
by TMLila
Hello! Thank you for contacting TerraMaster! Based on the device information you provided, you can use the System Disk feature (Storage Management > Disks > System Disk). Follow these steps:
1. On the System Disk page, select HDD1 and click the Delete button. This will remove the system partition.
2. Then remove the disk.
Note: This operation will not delete any data partitions on the disk. You can proceed with confidence.

Re: [Help] TOS 7.0.0398 Removing System Disk?

Posted: 31 Jan 2026, 17:37
by WasHE
Thank you!! :)