[Bug Fixes]
- Fixed an issue where Snapshot Manager would get stuck when loading a volume that contains more than 80,000 folders.
- Fixed an issue where a NAS would randomly reboot when migrating VMs from one LUN to another in ESXi.
- Fixed an issue where users would be unable to set Windows ACLs after updating QTS to version 4.2.1 (build 20160419).
- Fixed an issue where external device backup jobs created in Backup Station would disappear after updating QTS from 4.2.0 to version 4.2.1.
- Fixed an issue where backup jobs would fail to back up encrypted folders on the NAS to external devices (but the job status would show "finished").
- Fixed an issue where users would be occasionally unable to rename folders on the NAS using Safari on a Mac.
- Fixed an issue where the NAS would get stuck on the "loading data, please wait…" message when opening "Control Panel" > "Network" after a router was set to block Port 80.
- Fixed an issue where users would be unable to log in to QTS using Safari’s Private Browsing window.
- Fixed an issue where the NAS would fail to detect snapshots containing volumes that are more than 20TB in size.
- Fixed an issue where subdirectories within aggregated folders on the NAS would become inaccessible using Samba (File Explorer) in Windows 10.
- Fixed an issue where an rsync backup job would fail when backing up Container Station’s data folders.
- Fixed an issue where accessing folders on external devices using File Station would fail after setting folder permissions for those folders.
- Fixed an issue where Excel files stored on a NAS could not be concurrently opened by multiple Mac users if these files are already opened by a Mac user.
- Fixed an issue where RTRR jobs would fail if more than 132 job instances are concurrently executed.
- Fixed potential CGI vulnerabilities. Users are advised to upgrade their NAS firmware with this release.
[Note]
-The transcoding function has been removed from ARM-based NAS due to performance concerns.
- Read the firmware release notes from above and make sure it is necessary to update the firmware.
- Download the NAS firmware and unzip the IMG file to the computer.
- Before updating the system firmware, back up all the NAS data to avoid any potential data loss from unforeseen issues arising during the system update.
- Click "Browse" to select the firmware image for the system update. Click "Update System" to update the firmware.
- The system update may take seconds, minutes or longer to complete depending on the network connection status. The NAS will inform you when the system update has completed.
- If the system is running properly, you do not need to update the firmware.
- QTS does not support downgrading the firmware. However, if you choose to apply an older firmware version, please back up all of your important data before downgrading. QNAP is not responsible for any damage to the NAS or its contents after downgrading.
Upgrading the Network-Attached Storage (NAS) firmware can improve the system’s overall performance, stability, and security by adding various fixes for related issues, enhancing existing features (or adding support for new ones), or updating different applications.
Due to the high number of NAS manufacturers, as well as network storage types, installing a new firmware might not be always as easy as it appears – and not too safe either. Failing to perform a software update can cause serious malfunctions to the network storage.
So, before you even consider applying this release, carefully read the installation guide and initiate the process only when you have understood and completely familiarized yourself with all the steps.
Moreover, it would be best if you take into account using a UPS unit (Uninterruptible Power Supply) to perform this task, because no power disruption should affect the upgrade.
With all these aspects in mind, after you have read the installation guide, click the download button to apply this firmware version to your NAS. Remember to check back with our website in order to stay up to speed with the latest releases.
Top 4 Download periodically updates information of QNAP TVS-863 TurboNAS QTS Firmware 4.2.1 Build 20160601 full driver from the manufacturer, but some information may be slightly out-of-date.
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