Disk

In the Disk feature, you can view detailed information about the disks, check their health status, and perform maintenance operations such as disk checkups.

Management and Operations

Using the buttons in the feature configuration, you can perform the following operations:

Overview: View device model, disk slots, and other information.

Disk: Disk-related operations include:
 • Bad Block Scan: Perform a bad block check on the disk.
 • Remove/Enable: Removing a disk is equivalent to manually pulling it out of the TNAS, and the system will no longer recognize it; enabling a removed disk is equivalent to manually inserting it.
 • Settings: Enable disk write cache and bad sector warnings.
 • More: Includes advanced operations such as performance testing and secure erase.

System Disk: You can add, migrate, or delete system disks.

S.M.A.R.T.: Check the health status of the disks.

Disk Logs: Record operations related to the disks.

The table below lists the operations available under the disk "More" feature and their corresponding indications. Please refer to this list when performing various operations.

Status	Status Indication
Performance Test	Test disk read/write performance to help you fully understand disk IOPS, read/write speed, latency, and other metrics.
Secure Erase	Secure erase is mainly used to prevent data leakage and protect sensitive data. During secure erase, the system writes random 0s and 1s to the disk until all disk space is overwritten. Data on a securely erased disk cannot be recovered. Secure erase takes a long time, and do not interrupt the process, or your disk may be damaged.
Erase Disk	Erasing a disk is equivalent to initializing it. All array information, partitions, and file systems on the disk will be erased.
Mount Disk	Directly mount disks with different file systems to the TNAS without formatting, allowing easy access to data (only supports mounting Single-type disks, RAID array disks are not supported). Currently, TNAS supports a wide range of file systems including FAT, FAT32, NTFS, EXT2, EXT3, EXT4, ExFAT, Btrfs, HFS+, etc.
Unmount Disk	Unmount a mounted disk.
Permissions	Set user group permissions for mounted disks. FAT32, NTFS, and exFAT formats do not support permission settings. Default permission is: allusers.

Note

1. Secure erase and erase disk functions are only applicable to disks not in use. For disks in storage pools, if the number exceeds the array redundancy, please delete the corresponding volume and storage pool first; for mounted disks, please manually unmount them first. Only then can these functions be used.
2. Removing disks from an array will cause the array to downgrade; removed disks cannot be used until re-enabled.
3. USB devices cannot perform secure erase, erase, mount, or unmount operations in the Disk interface. To operate on USB devices, please go to the USB feature interface.

How to Add a System Disk?

1. Click the "Create" button, select the disk you want to add as a system disk, and click "Confirm".
2. Confirm your selection again in the popup prompt and click "Confirm".
3. The system will check the partition of the selected disk:
 • If the selected disk does not meet the requirements for a new system partition and needs to be formatted, please click "Confirm" again.
 • If the selected disk meets the partition requirements, there is no need to click "Confirm" again.

How to Migrate a System Disk?

1. Click the "Migrate" button, select the disk to migrate the system from, and click "Next".
2. Select the disk to migrate the system to, and click "Confirm".
3. Confirm your selection again in the popup prompt and click "Confirm".
4. The system will check the partition of the selected disk:
 • If the selected disk does not meet the requirements for a new system partition and needs to be formatted, please click "Confirm" again.
 • If the selected disk meets the partition requirements, there is no need to click "Confirm" again.

Note

1. System disks can only be set on the same type of disk.
    • When adding a system disk, you can only select disks of the same type as the current system disk.
    • When migrating a system disk, if you want to change the type of the system disk, select all current system disks for migration.
2. After a successful migration, the original system disk cannot be used as a standalone system disk.
3. A non-current system disk refers to a disk with a system partition containing a TOS system that is not currently running. You cannot add or migrate it as a system disk until that system is deleted.