Important Notes

• Using SSD cache in earlier QTS 5.0.0 versions might cause data corruption issues. We have fixed all identified issues in this release. Important: If you discover suspicious symptoms on your device, DO NOT run a file system check in Storage & Snapshots. To learn more about the circumstances, impacts, and solutions, see our Technical Advisory: https://www.qnap.com/en/technical-advisory/tec-202112-01
• Removed support for USB printers.
• To ensure data security, system stability, and storage performance, the maximum number of drives for a single RAID group is now 16 (applicable to RAID 5, RAID 6, and subgroups of RAID 50 and RAID 60). Nevertheless, users can combine multiple RAID groups into a large storage pool that contains more than 16 drives, using RAID 50, RAID 60, or RAID 10 as the RAID configuration. This enhancement will only be applied to new RAID groups. All existing RAID groups and storage systems will not be affected.
• For the status of QTS updates and maintenance for your NAS model, visit https://www.qnap.com/en/product/eol.php

Security Updates

• Fixed SMB CVE-2021-44142 and some security issues.

Fixed Issues

• Network & Virtual Switch would highlight incorrect Ethernet ports on the device drawing after users installed network expansion cards on the TDS-16489U.
• Users could not enable Advanced Network Driver after migrating disks from one NAS to another NAS.
• Resource Monitor would not display swap memory usage for SSDs after a system restart.
• Users could not create storage pools or volumes with the M.2 SSDs installed on the QM2 expansion card.
• Users could not cancel or delete video transcoding tasks in File Station.
• Storage & Snapshots would not rebuild a RAID 1 group after users replaced a failed disk if the other disk was in the "warning" state.
• When users replaced a disk in a legacy volume to rebuild the volume, Storage & Snapshots would display the volume status as "Unmounted (Rebuilding)".
• The "@Recently-Snapshot" folder would contain more snapshots than Snapshot Manager. (Normally, they should contain the same number of snapshots.)
• Users could not connect to iSCSI targets via static IPv6 addresses after updating QTS to 5.0.0.1828.
• Users could not stop a RAID scrubbing task in the "Background Tasks" on the Desktop.
• Desktop icon names would be truncated in certain languages.
• After users deleted files via FTP, QTS would not move the deleted files to the Recycle Bin.
• After enabling Folder Aggregation, users could not copy files from macOS to the portal folder. (Note: Folder Aggregation combines shared folders from different devices on the same network into a portal folder.)

Known Issues

• Some applications cannot access the NAS when secure connection and TLS 1.3 are enabled. This is due to a known issue in the applications. We will fix this issue in upcoming app releases.
• macOS Finder takes a long time to display content in SMB shared folders when users connect the Mac to the NAS via Thunderbolt. This problem may be due to Mac device driver issues. It only occurs to Mac devices with Intel processors and macOS 11 (or later versions).
• Thunderbolt write speeds are lower than expected in QTS 5.0.0. Note: Due to Thunderbolt driver compatibility issues, if you are using macOS 11/12 devices with Intel processors, we do not recommend updating QTS to 5.0.0 for the time being.
• QTS and QuTS hero with newer kernel versions do not support ATTO Fibre Channel adapters. If you have already installed an ATTO Fibre Channel adapter on your device, we do not recommend updating the firmware to QTS 5.0.0 or QuTS hero h5.0.0 for the time being.
• Control Panel cannot display the information of the TPU installed in the M.2 slot on the QGD-1602P.
• After users rename a shared folder, QuLog Center still displays the original folder name in Accessed Resources.
• The WordPress folder would disappear from the NAS Web Folder after users updated QTS to 5.0.0 and WordPress to 5.7.2. (WordPress could not keep the previous settings during the update.)
• On certain ARM-based models, non-administrator users cannot access subfolders in the @Recently-Snapshot folder when advanced shared folder permission settings are enabled.
• A file system issue (EXT4 error) might occur when users disabled or removed SSD cache after using SSD cache.

Other Changes

SSD Profiling Tool

• QTS no longer pre-installs SSD Profiling Tool by default. Users can install this tool in the App Center.

Control Panel

• Replaced SQL Server with MariaDB 5/MariaDB 10, which can be installed in the App Center.
• Removed iSCSI Service from Service Binding in Control Panel. Users can now configure iSCSI service binding settings in iSCSI & Fibre Channel.

Qboost

• Qboost is no longer a built-in application of QTS. Users can choose to install Qboost in App Center.

App Center

• To ensure system security, QTS now automatically disables applications that are not updated and that do not meet the minimum version requirements.
• Removed support for the following applications, utilities, or services:
  • WebERP
  • GLPI
  • Vtiger CRM
  • Ragic Cloud DB

QVR Pro Client & QVR Smart Client

• Starting from QTS 5.0.0, HybridDesk Station no longer supports QVR Pro Client (HDMI output). You can install QVR Smart Client on HybridDesk Station as the client software for your QVR Pro, QVR Elite, or QVP surveillance servers. Note that QVR AI Pack License is required for using QVR Smart Client. You can continue using QVR Pro Client on Windows or macOS as the client software for your surveillance servers to watch live views or play back recordings.

NVR Storage Expansion

• Starting from QTS 5.0.0, NVR Storage Expansion is no longer supported.