Hi everyone! 👋

New updates are available for TerraSync and TNAS PC.

TerraSync 2.1.560 & TerraSync Client 2.1.560 are now available in the App Center.

What’s new?
• On-demand sync for Mac: Sync files when needed, helping save local storage space.
• Clearer error messages and better logs: Make issues easier to identify.
• Improved sharing security: Share files more securely.
• Fixed a memory leak and other known issues.

TNAS PC 5.2.560 is now available on the official website and in the App Center.

Updates include:
• Clearer error messages for sync tasks.
• Fixed an issue where SSL certificates might not take effect in some scenarios.
• Other known bug fixes.

📌 Details: https://forum.terra-master.com/en/viewtopic.php?t=10687

Let us know what you think!

I try to download it from the appcenter and it always just fails about halfway through. Anyone else experiencing this issue and if so what's the next step?

Hi everyone,

VMs 1.0.060 is now available in the TOS 7 App Center. You can update directly through the App Center.

What's New?

• More reliable image imports: Fixed storage selection issues when importing images with insufficient available space.
• Clearer PCI device information: Fixed missing names for some PCI devices.
• More reliable VM imports: Fixed data retrieval failures during virtual machine imports.
• Additional fixes: Improved overall stability with several other bug fixes.

Recent versions of VMs also include CLI support, allowing you to manage the app through command-line tools and AI agents.

Important: VMs and VirtualBox cannot run at the same time. If VirtualBox is installed on your system, VMs cannot be enabled.

Have you tried VMs on your TerraMaster NAS? Share your experience or feedback in the comments!

Thank you to everyone who joined our “Show Us Your NAS / Home Lab & Win a F2-425” giveaway! We loved seeing your setups and creative ideas.

🏆 Congratulations to our winners!

🥇 u/ ThatJK@thatjkgamer
🥇 u/Soggy_Firefighter_22

📩 Please DM us by October 21, 2026 to claim your prize. If we don't hear from you by then, an alternate winner may be selected.

Didn't win this time? Stay tuned for more TerraMaster events and giveaways!

Im operating on a F4-424 on 6.0.770 and I'm wondering if I should go to 7.

My biggest issue so far has been a resync issue that happens when I close TNAS, even with normal shutdown (Button and web even when nothing's running). Don't know if it's fixed or resolved, but in any case I'd like to upgrade. My questions

-Whar are the known bugs and annoyances so far?

-Do I have to go 6.0.770->6.0.794 first and then manually update to 7, or can I go now

-will a resync happen with every upgrade? Cause I'm on a three disk Traid and every resync days 3-4 days

-Besides filesharing I haven't set anything much in terms of apps and services, but should I expect many things not working and having to reset stuff?

Two TOS 7 updates to share with our community!

TOS 7.0.1298 | x86 & ARM | Online Rollout Complete

Users running TOS 7.0.0746 or later can check for updates.

TOS 7.0.1341 | x86 | Available for Manual Installation

This update brings several practical improvements:

• More reliable app updates: Fixes an issue that could prevent apps from updating when their version numbers contained a hyphen.
• Correct app name display: Fixes incorrect app names in some App Center messages.
• Improved input validation: Fixes insufficient validation of path parameters in certain system interfaces.
• Stronger access controls: Fixes permission checks that could allow non-admin users to access restricted functions.
• More complete file deletion: When hidden files are set to be displayed, selecting all files with Ctrl+A and deleting them now also removes hidden files.
• Improved App Center layout: Fixes an issue where the “NEW” label on some newly released apps could extend beyond its display area.

📥 TOS 7.0.1341 release notes and download:
https://forum.terra-master.com/en/viewtopic.php?t=10678

Thanks for being part of the TerraMaster community. We welcome your feedback!

I'm trying to add my media collection from my F4-424 Pro running TOS7 to Kodi 22 RC 1 on my Nvidia Shield Pro 2019.

I can see the NAS and I can see the folders but I can't see any of the media files. Both SMB and NFS are enabled on the NAS.

In Kodi NFS doesn't work I get a spinning wheel then nothing. The SMB option shows TNAS when I click on it the folder named "public" shows up when I open that it's shows my media categories for example Movies, TV shows etc. When I browse into the Movies folder I can see all of the movie folders named by movie title, but when I browse into the named movie folder the are no files showing?

The same media collection runs fine on Plex.

Any ideas?

A few months ago, I picked up an F4-425 Pro and F6-425 Pro.

They've been working well so far, but I've run into an odd problem.

When I move large quantities of files (around 100+GB) off either NAS, it locks-up mid process. The lock-up doesn't happen immediately. Just some time mid-process of the file transfer.

This happens with both model NASs.

The fans are still running but the NAS has dropped off the network and it does not respond to pings.

I have to hold down the power button to force a shut down, wait 20 seconds, then boot them again.

When they come back up, Storage Manager does not indicate any problems. No issues were logged. No heat warnings.

I used to have HyperCache (read-only) enabled on the F4-425 Pro. I tried disabling it to see if it affected the issue. It did not.

I don't know for sure, but I feel like they weren't always doing this. It feels like it started with a recent firmware update.

When I setup the F6 NAS, I'd already had the F4 NAS a few weeks. I moved a lot of files from the F4 to the F6. I didn't have an issue then.

I've been updating the firmware on both, almost every week, as updates are released, but the issue persists.

I can move about 50GB of files at a time without trouble. If I try to move 100GB (or more), the NAS will lock-up mid process. I don't know if it's an issue with file count or total transfer size.

I have not run into any issues uploading files to either NAS. Multi TB uploads have been fine.

I'm just using File Explorer in Windows 11 to make the transfers.

I don't use any apps or services other than file sharing.

Is this a known issue? How do I get TerraMaster to investigate?

I’m trying to diagnose an intermittent disconnect/reconnect issue with a 14TB Seagate HDD in a TerraMaster D4-320 USB DAS.

The drive is a Seagate ST14000NM0121, originally shucked from a Seagate Expansion Desktop 14TB STKP14000400. It’s being used in a TerraMaster D4-320 connected directly to a Mac.

The problem is that the 14TB drive will occasionally disappear from macOS and then remount automatically a short time later.

SMART/DriveDx looks very clean:

• SMART health 100%
• 0 reallocated sectors
• 0 pending sectors
• 0 offline uncorrectable sectors
• 0 reported uncorrectable errors
• 0 UDMA CRC errors
• no SMART self-test failures
• no obvious media errors

At first I thought this might be a bad bay or bridge inside the D4-320, so I started logging macOS kernel and Disk Arbitration events.

On one failure, the 14TB was attached through a TerraMaster USB/UAS endpoint identified as:

TDAS@01220000

The logs showed a USB request timing out after 5 seconds with 0 bytes transferred, followed by the TDAS device re-enumerating and the disk appearing again. In other words, this did not look like macOS voluntarily unmounting the disk — the USB mass-storage endpoint itself stopped responding and disappeared temporarily.

To test whether the problem was the bay or the drive, I physically swapped the 14TB and 18TB drives between two bays.

I then copied roughly 307GB from an external SSD to both the 14TB and 18TB simultaneously. Both transfers completed successfully.

Shortly afterwards, the 14TB disconnected again.

This time the failure was on a different TerraMaster endpoint:

TDAS@01240000

The logs showed the TDAS device terminating, /dev/disk5 disappearing, and macOS explicitly identifying the lost volume as my 14TB volume. The drive later re-enumerated, macOS recreated the disk device, replayed the HFS journal, and remounted the volume.

So the important part is:

Before swap:
14TB → TDAS@01220000 → disconnect

After swap:
14TB → TDAS@01240000 → disconnect

The 18TB drive moved into the 14TB’s old bay and has not shown the same behaviour so far.

That makes a single bad D4-320 bay much less likely, because the failure appears to follow the physical 14TB drive.

What I’m unsure about is whether this points to:

• an intermittent fault in the 14TB drive’s SATA/interface electronics despite clean SMART,
• a compatibility issue between this specific Seagate model and the D4-320’s USB/UAS bridge,
• or some firmware/power-management quirk with this drive model.

The drive is a shucked ST14000NM0121, which I believe is one of the enterprise/Exos/Mach.2-style models people commonly find inside some 14TB Seagate Expansion externals.

Has anyone seen similar behaviour with this model in a USB DAS, NAS, Unraid, TrueNAS, or server setup?

In particular, has anyone seen a drive remain completely SMART-clean while periodically causing the USB/UAS endpoint to disappear, time out, and re-enumerate?

For now I’m backing everything off the 14TB onto another drive before doing more testing.

If useful, I can also post the relevant macOS kernel log excerpts.

So I only use my nas for my plex server. It's fairly new.

Started with a 4tb drive and have a 10tb hdd arriving Monday.

I would like to keep increasing storage as pricing allows.

Should I upgrade the nas to a 4bay or just add a das with hardware raid?

What would you all do if placed in my crocs.

Hi everyone,  

TOS 7.0.1298 is now available on the TerraMaster forum for both x86 and ARM NAS devices. This release addresses a range of issues to improve app management, file operations, system settings, and everyday usability. 

What’s improved in this release?

x86 & ARM

• App access and login: Fixed issues with opening some newly installed apps, login field focus, time synchronization controls, and avatar uploads. 
• Interface and system behavior: Fixed blank audio tooltips and other known issues. 

ARM-specific fixes

• File management: Fixed folder transfer and comparison issues, folder sorting, and missing error messages when deleting a home directory with Vault enabled. 
• Accounts and permissions: Addressed LDAP user SMB login failures and issues with application and shared folder permissions. 
• System reliability: Fixed excessive Message Center memory usage, CPU temperature alert compatibility on certain models, and overly frequent network connectivity checks. 
• More fixes: Resolved issues with Beta system updates, VPN theme colors, unexpected dialog messages, and other known bugs. 

Get the update:

• x86 release notes and download
• ARM release notes and download

Manual update packages are available now. Online rollout is scheduled to begin next Tuesday.

Have you updated? Share your experience in the comments!

I have 1 10tb and 1 8tb. Another 2 8tb are coming.

I am undecided, I if remaining with traid or I switch to traid+.

I'm already using 8tb, so, with traid+ I will have only 8tb free from the 2 new disks, 0 free slot, and I will need to change at least 3 disk to increase capacity.

I just don't know how to estimate the risk of a double failure.

I backup every morning on external drives (and on cloud for important data); And I only brought disks with a URE of 1 over 10^15.

[ Removed by Reddit on account of violating the content policy. ]

This question is in 2 parts.

Part 1.

Jellyfin version - I am using the native app. When I go into the apps in Tos 6 and look at the installed Jellyfin it says the version is 10.11.10. When I go to the dashboard in jellyfin and look at the app version it says 10.11.0. Is this just sloppy porting of the app and they are not different versions? This what the dashboard says:

Server name TNAS-2025

Server version 10.11.0

Web version 10.11.0 (c8eed9a89-dirty)

Build version Release

I want to try and install the 10.11.10 version that I can download thought the app center in TOS 6. Is it worth it - or is it the same?

I want to back up my jellyfin first - but I cannot see the @ app folder. I have tried login in with ssh and filezilla using sftp but I still cannot see the app folder. How can I see the folder to back it up?

TIA

What does your NAS or Home Lab setup look like?

Whether you’re planning your next storage upgrade or simply happy with your current setup, there’s something for you: up to 30% OFF TerraMaster products, plus a chance to win a TerraMaster F2-425 NAS！

How to enter:

1. Share your NAS / Home Lab setup:
On Reddit: Comment on this post, share a photo of your setup, and briefly tell us about your hardware, configuration, or how you use it.
On other social media: Comment on the post or share your setup with #TerraMasterHomelab.

2. Complete tasks on Gleam ✨
The more points you earn, the higher your chances of winning!

🎁 Prizes: 2 × TerraMaster F2-425 NAS
📅 Giveaway Period: Sep 29 – Oct 8

Winners will be selected at random and announced on TerraMaster’s official social media channels after the giveaway ends.

By participating, you grant TerraMaster permission to share your submitted photos on its official social media channels. We’ll notify you if your photo is selected to be shared.

Good luck, and happy storage upgrading!

I manually upgraded Plex Server natively in App Central. Plex server is running, but can't seem to access the media. It can see the folders. I doublechecked app permissions in TOS7 and the plex user has read/write to all of the shared folders.

What else can I check?

Hi everyone,

TOS 7.0.1278 is now officially available. This is a temporary fix release focused on addressing several issues that could affect daily NAS use, including CPU temperature alerts, file operations, memory usage, and network connectivity.

With this update, you can expect:

• More accurate CPU temperature alerts on affected models
• Lower risk of occasional high memory usage from the Message Center
• More reliable file operations when uploading, copying, or moving folders to existing directories
• More consistent SMB login for newly created users after connecting to an LDAP domain
• More reliable network connectivity checks without unnecessary frequent requests
• Better folder selection and sorting in related functions
• More consistent application management, including apps appearing correctly after installation
• More reliable shared-folder and application permission settings
• Fixes for several UI, SSH, VPN, and other known issues

Update availability:
TOS 7.0.1278 is available for users running TOS 7.0.0746 or later.

If you're on a supported version, you can check for the update through Control Panel > System Update.

The TOS 7 online installation guide has also been updated to 7.0.1278.

📥 Release notes & download:
https://forum.terra-master.com/en/viewtopic.php?t=10622

Thanks for your feedback and continued support!

I spent the better part of six hours today trying to figure out why my NAS is not reachable from my network, even though I can ping it. Each time I try to chat with technical support. I'm told that it is during their break hours. I'm not sure why there are six hours worth of breaks in the middle of a Saturday where no one can respond to a request. Meanwhile, I've had inconsistent responses from their software all day long, and I'm unable to access the files that are on my system, which I need for my business. If this is a type of support that I'm going to receive from Terra Master, then I'm not gonna trust my business capabilities to their product. Can anyone else provide information on how to speak to someone who can support me.

Interested in the TERRAMASTER F8 SSD NAS 8-Bay. I have never used Terramaster, does it have good automation or API to work with? I cant find much information on their website about any of this. Really looking for Terraform modules to interface this system if possible.

Please fix such that USB Copy doesn't copy the snapshot file (@snapshot) for volumes with the snapshot feature enabled.

I've setup a Romm docker container in container manager, successfully imported my 45k rom library, and scraped all images for the library.

However when I try to launch a rom, the system sets up the rom and I get a network error before the emulator launches. Looking at the logs I think it's a permission error, but what I don't get is if the container doesn't have permission, it wouldn't even be able to see my rom library in the first place (which was the first hurdle I had when setting up Romm in the first place).

Anybody have any tips on getting this going? Run into the same issue? If it matters, I'm running this on an f4-425 pro running TOS7.

Hi everyone！TOS 7.0.1225 is now available for manual installation on both x86 and ARM systems. The OTA rollout is expected next week. If you'd like to update sooner, you can download the corresponding package from the TerraMaster Forum and install it manually.

What does this update improve?

This release focuses on stability, file management, network compatibility, and everyday usability.

• More reliable storage management Fixes issues where disk information could fail to load after removing a disk, storage pool member counts could be displayed incorrectly, or hot spare replacement could trigger duplicate notifications.
• Better file transfer reliability Fixes cases where copy task progress could unexpectedly move backwards. On ARM systems, it also addresses an issue where large remote downloads could stop after running for some time.
• Improved SMB & NFS compatibility Fixes issues with SMB advanced settings, custom SMB configuration, and NFS mounts when remote paths contain spaces.
• More consistent login experience Fixes an issue where trusted devices could still require OTP verification after logging in again.
• Better app & USB support Fixes an issue where some applications could not properly scan data from USB devices.
• More reliable system notifications and file operations Includes fixes for local SMTP notifications, shared folder migration status, and saving files to user directories.

There are also several other known issues addressed in this release.

Manual Update

If you'd like to try TOS 7.0.1225 before the OTA rollout, you can find the update packages and installation instructions here:

x86:TOS 7.0.1225 x86 Forum Announcement

ARM:TOS 7.0.1225 ARM Forum Announcement

For those who prefer to stay on the current OTA release, TOS 7.0.1201 is now fully available for users running TOS 7.0.0746 or later.

We hope this update makes your everyday TOS experience more stable and reliable. If you try the new version, feel free to share your feedback or let us know if you notice any issues.

Thanks for being part of the TerraMaster community!

I have the older F4-423 running TOS 6.0.794.

Can the F4-423 handle upgrading to TOS7? Would the system be too old? I see the OTA option to upgrade to TOS 7.0.0747 from inside the System tab.

I'm just afraid that these older NAS will struggle on the new TOS 7.

The system currently running ok on TOS 6, except for the weird issue where the system will initiate syncronizing the volume after powering up the NAS from a total shutdown. I've lived with this weird bug for years now and kinda immune to it by now. I just let the NAS finish the syncronizing hours later.

Should I bite the bullet and just upgrade from TOS 6 to TOS 7?

Today, we’re officially launching the new TerraMaster 725 Series enterprise rackmount NAS, comprising four models: U8-725, U12-725, U12-725 Plus, and U16-725 Plus.

As AI applications and digital business continue to accelerate, enterprises are facing growing demands for data capacity, concurrent access, and data management. To meet the need for high-performance, reliable, and scalable storage infrastructure, the TerraMaster 725 Series brings together Xeon-based enterprise hardware, high-speed networking, NVMe SSD support, and PCIe expansion capabilities in a unified storage platform for demanding enterprise workloads.

One Platform for Multiple Enterprise Workloads

The 725 Series is designed to go beyond traditional file storage and backup, supporting multiple workloads on a single platform, including:

• Enterprise file storage and collaboration
• Data backup and disaster recovery
• 4K/8K media production and content collaboration
• AI training dataset storage and high-speed data access
• Video surveillance storage and archiving
• Virtualization and enterprise applications

By consolidating different workloads onto a unified storage platform, enterprises can reduce the need for multiple standalone storage systems, simplify IT infrastructure, and lower overall procurement and management complexity.

Xeon Performance and High-Speed Networking for Demanding Workloads

The U12-725, for example, features an Intel Xeon D-2712T 4-core processor and 16GB of ECC memory, along with four 10GbE SFP+ ports and two 5GbE network ports. It also supports PCIe 4.0 NVMe SSDs and PCIe expansion, providing high-speed data access for concurrent users and data-intensive workloads.

Under TerraMaster laboratory testing conditions, the U12-725 achieves sequential read speeds of up to 6,250 MB/s, sequential write speeds of up to 3,480 MB/s, and up to 945,063 IOPS in 4K random read performance. Actual performance may vary depending on hardware configuration, RAID mode, network environment, and specific workload.

Four Models for Different Enterprise Storage Requirements

The four 725 Series models provide a clear product hierarchy spanning storage capacity and computing performance:

• U8-725 — 8-bay, 4-core Xeon: Enterprise file storage, backup, and virtualization
• U12-725 — 12-bay, 4-core Xeon: High-performance unified storage, media, AI data, and surveillance
• U12-725 Plus — 12-bay, 8-core Xeon: High-concurrency, AI, virtualization, and professional media
• U16-725 Plus — 16-bay, 8-core Xeon: Large-scale enterprise data and demanding workloads

From enterprise file storage, backup, and virtualization to media production, AI data, and video surveillance, partners can select the appropriate model based on customers' data volumes, workload requirements, and future expansion plans.

TOS 7: A Data Foundation for the AI Era

The 725 Series runs TOS 7, TerraMaster’s AI-Native operating system, with enhanced capabilities for large-scale data search, indexing, and intelligent management, bringing AI-driven capabilities to enterprise storage infrastructure.

For AI development teams, the 725 Series can serve as a centralized storage platform for training datasets and related data assets. For enterprises exploring private AI, it can also provide a reliable local data foundation for knowledge bases, intelligent applications, and data analytics.

Expanding Enterprise Storage Opportunities for Partners

The 725 Series further strengthens TerraMaster's enterprise storage portfolio while creating new opportunities for distributors, resellers, system integrators, IT service providers, and security integrators.

With Xeon-based enterprise hardware, TOS 7, data protection, backup, virtualization, high-speed networking, and AI data capabilities, partners can build comprehensive storage solutions for enterprise IT, media production, AI, surveillance, and data protection applications.

More information: TerraMaster official website