Firmware Update: Synology DSM 6.2.3 build 25426-2

Synology has released an update for Disk Station Manager version 6.2.3. Synology DSM is the management software that runs on several of the company’s NAS products. The Disk and Rack Stations offer more than just extra storage space. For example, backups of all clients on the network can be made and files can be downloaded via http, ftp, bittorrent, usenet and emule, so that, for example, energy-hungry PCs can switch off at night while the download just comes in. Furthermore, audio and video files can be streamed over the network via the built-in iTunes server, a dynamic website can be hosted using PHP and MySQL and it can act as a print server.

To be able to install version 6.2.3, at least version 6.0 must be present. Furthermore, it is only suitable for the NAS models whose type number ends with 11 or higher. For the other conditions and the different downloads, look at this page. Few changes that are important to home users have been made in version 6.2. The necessary changes and improvements have been made for the heavier models and the NAS that are used in business environments. The changelog for this release looks like this:

Version: 6.2.3-25426-2

Important Note

• Your Synology NAS may not notify you of this DSM update. If you want to update your DSM to this version now, please click here to manually update it. Only Synology NAS with DSM 6.2.3 installed can be updated to this version.
• This update will restart your Synology NAS.

What’s New

• Added support for Synology Expansion Unit FX2421.

Fixed Issues

• Fixed the issue where a DS920+ or ​​DS720+ might not enter hibernation when its connected expansion unit has entered deep sleep.
• Fixed the issue where drive status LED indicators on a connected expansion unit might not work properly when the expansion unit wakes up from deep sleep.
• Fixed the issue where daylight saving time might not display correctly in certain time zones (eg, Dublin, Casablanca).
• Fixed the issue where mounted remote shared folders on a Synology NAS may cause volumes to operate improperly or the Synology NAS unable to shut down in certain scenarios.
• Fixed the issue where the system might incorrectly prompt “drive slot disabled” notice when a DS413 or DS213+ wakes up from deep sleep.
• Enhanced the performance in writing a large number of files to a Btrfs volume with RAID 1 configuration using hard disk drives (HDD).
• Fixed the issue where Synology Universal Search and Synology Drive might consume excessive CPU resources when the option “Utilize unused memory as database cache to improve (search) performance” has been enabled.
• Fixed the issue where domain-related services might not resume working because the update of domain data could not be complete.
• Fixed security vulnerabilities (Synology-SA-20:18).
• Fixed the issue where the system might incorrectly prompt IP address conflict warning if a network interface card is attached to Synology NAS and the option “Reply to ARP requests if the target IP address is a local address configured on the incoming interface” is disabled.
• Fixed the issue where the status of an Ethernet port might not be detected properly when the Ethernet port is not connected to a network cable while Open vSwitch has been enabled.

Version: 6.2.3-25426-1

Fixed Issues

• Fixed the issue where Storage Manager might display an incorrect warning when the size of a storage pool is over 16 TB on certain 32-bit models.