Synology DSM 7: New features, supported NAS, how to install

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Synology DiskStation Manager (DSM) is the operating system that runs on the company’s array of enclosures. We’re currently on version 7 with frequent updates pushed out packing new features for Synology NAS owners to enjoy. Here’s all you need to know.

Synology DSM 7.1: New features

  • Efficiently back up and restore all your configurations, applications, and data in DSM.
  • Improvements to our SSD cache implementation and new options to simplify SMB file server access.
  • Solutions for heavy VM use, multi-site data protection, and domain management in non-trusted environments.
  • Gain better oversight of processes and statuses throughout your deployment with more information aggregated to your preferred DSM account.
  • Be the first to benefit from the latest improvements in IT management, user experience, and security with new versions of our most-used applications.
  • SSD Cache Groups can be allocated to multiple volumes, allowing for more flexible management of SSD cache capacity.
  • Storage Manager now supports the management of the drives and storage of both active server and passive server in a Synology High Availability cluster.
  • Added support for Btrfs (Peta Volume) in Active Backup for Business and Synology High Availability.
  • If there is a file system error, DSM will unmount the volume to run file system checks without interrupting the services on other volumes.
  • Reduced the minimum threshold for low capacity notification from 5% to 3%.
  • Added support for custom OIDC (OpenID Connect) settings to integrate DSM with external SSO servers.
  • Added support for the RTF editor to allow users to preview notification message content and style in real-time when editing.
  • Added support for bypass traverse checking at Control Panel > File Services > Advanced to allow users to traverse folders and access permitted files or subfolders.
  • Supports specifying domains from the list of trusted domains to synchronize domain data.
  • Added the Greenwich Mean Time (GMT+00:00) time zone option at Control Panel > Regional Options > Time.
  • Added the synchronization status between DSM and NTP servers at Control Panel > Regional Options > Time.
  • Added icons on the taskbar to indicate ongoing background tasks that might affect system performance.
  • Users can now open tabs directly from search results in Control Panel.
  • Supports automatically updating the domain database and syncing domain data regularly. For Synology NAS that are used to create domains, the “Update User Groups/Lists” option in Control Panel > Domains/LDAP will be disabled by default after updating to DSM 7.1.

Synology DSM 7.0

The following features were added in DSM 7.0:

  • USB hardware, including Wi-Fi and Bluetooth dongles, will no longer work.
  • DSM 7.0 will end NAS support for ext3.
  • DSM 7.0 disables NTLMv1 by default in favor of NTMLv2, which may prevent SMB clients from connecting.
  • SSD caches on block-level LUNs are no longer supported.
  • NT4 domains are no longer supported.
  • DSM URLs have been modified. (Check firewall rules if in use.)
  • iSCSI Manager is now SAN Manager in DSM 7.0.
  • TLS/SSL profile level in Modern Compatibility will auto change to Intermediate Compatibility for better TLS support and compatibility.
  • EZ-Internet has been merged with Router Configuration within Control Panel.
  • Python3 has been merged into DSM 7.0 as a built-in service.
  • QuickConnect is secured with a Let’s Encrypt SSL certificate.
  • Security Advisor enables login analysis and custom account detection check items by default.
  • The following DDNS providers have been removed:
    • CloudNS.
    • DNO-O-Matic.
    • DNSEXIT.
    • Dynamic DO!.jp.
    • Joker.com.
    • RU-CENTER.
    • TwoDNS.de.
    • Variomedia.
    • Zoneedit.com.
  • Video conversion to FLV and MPEG-4 Part 2 formats are no longer supported on:
    • DS120j.
    • DS119j.
    • DS216se.
    • DS215j.
    • DS115.
    • DS115j.
    • RS814.
    • RS214.
    • DS414.
    • DS414slim.
    • DS414j.
    • DS214+.
    • DS214.
    • DS214se.
    • DS114.
    • DS213j.
  • Active Insight and Hybrid Share Service are built into DSM 7.0 and will be automatically installed.
  • Storage Manager:
    • Added visuals of Synology NAS models with their drive slots, expansion units, and built-in M.2 slots to help users view drive status.
    • Enhanced usability with a clearer display of the relationship between storage pools, volumes, and SSD caches.
    • Enhanced the setup process of Hot Spare and Data Scrubbing.
    • Added a feature to guide users through configuring newly inserted drives.
    • New features of storage pools, volumes, and drives:
    • Supports performing different tasks on different storage pools simultaneously.
    • Supports updating the firmware for Synology drives.
    • Enhanced the access performance of degraded RAID 6 by 70%.
    • Added display of the storage usage of each category item on Btrfs volumes.
    • Added a new Fast Repair mechanism to reduce the time needed for RAID repair based on storage usage and thus reduce the time of RAID degradation.
    • Added the ability to replace a drive in a healthy storage pool with an unused one without interrupting services or causing storage-pool degradation.
    • Added the ability to automatically replace “Critical” or “Failing” drives in protected storage pools with Hot Spare.  
    • Added the Auto Repair feature to automatically run a RAID repair when a malfunctioned drive is replaced with a healthy one in the same drive slot.
    • Added the ability to eject a storage pool on an expansion unit to ensure the safe removal of drives without interrupting system services.
    • Added the ability to mount storage pools from drives that are inserted after the device has been powered on without interrupting system services.
    • Supports customizing the low-capacity notification for individual volumes when their available space drops below the specified value.
    • Added support for space reclamation schedules for Btrfs volumes.
  • SSD Cache:
    • Added the ability to create and remove SSD caches without interrupting system services.
    • Added the new SSD Cache Advisor to monitor I/O accesses and provide more accurate capacity recommendations.
    • Added the ability to pin all Btrfs metadata to SSD caches to enhance the performance of accessing small files and shorten the response time when accessing files regularly.
    • Added the ability to activate automatic protection on SSD read-write caches with multi-drive fault tolerance.
    • Added support for the quick write-back mechanism, delivering a 30% faster synchronization from SSD caches to HDDs when automatic protection is activated.
  • Resource Monitor
    • Revamped the display of recorded performance metrics with a finer granularity of data points and the ability to focus on certain time points.
    • Enhanced monitoring transparency of system services by separating larger, unrelated processes.
    • Added the ability to manage currently accessed files and their connected users to better handle locked files.
    • File System/File Services.
    • Supports enabling/disabling file compression for shared folders created on DSM 7.0.
    • Enhanced file compression ratio and added display for the current ratio for each shared folder.
    • Added support for cross-protocol locking between SMB and AFP.
    • Supports accessing encrypted shared folders via NFS.
    • Enhanced Btrfs performance and lowered I/O latency.
    • Modularized the SMB file service into a package.
    • Allows users to enable/disable SMB transfer logs for permission changes, providing more flexible transfer logs.
    • Enhanced the encryption performance by up to 10% on certain models with the x86 platform.
    • In Windows File Explorer, users can now search for the files and their content in indexed folders.
  • User Management
    • Enhanced the password policy. Passwords must exclude username and description, include both upper-case and lower-case letters as well as numerical digits. The minimum password length is eight characters.
    • Added the ability to delegate predefined administrator roles to non-administrator user accounts and allow them to manage certain services and system settings, offering more flexible permission management.
    • Added the ability to require imported users to change their passwords after their initial DSM logins.
    • Added the ability to assign user accounts from import lists to specific groups.
    • Domain/LDAP Integration
    • Enhanced LDAP client authentication performance by reducing the number of queries sent with a caching mechanism.
    • The following services and packages now support UPN logins: Synology Assistant, Hyper Backup, Synology Mail Server, Synology Calendar, and Shared Folder Sync.
    • Enhanced domain database synchronization performance by syncing only altered data.
  • Security
    • Added the ability to block USB and console ports.
    • Enhanced QuickConnect connection process to strengthen security.
    • Provides only TLS 1.3 support for the Modern Compatibility option for TLS/SSL profile level.
    • Added the ability to set 2-factor authentication as mandatory for specific users or groups.
  • User Experience
    • Enhanced user experience for DSM first-time installation and Synology Account related service setup (e.g., QuickConnect).
    • Added the ability to automatically install important DSM and package updates.
    • Added information and usage tips about security, notification, and other recommended settings in DSM Help.
    • Added the ability to back up DSM system configuration to a connected Synology Account.
    • Added the ability to export folder permissions reports.
    • Added support for application webhook integration to send system notifications to Synology Chat and other third-party applications.
    • Added severity levels to notifications for better categorization of events.
    • Enhanced user interface responsiveness to launch installed packages and services faster.
    • Enhanced login performance when connecting from external networks.
    • Enhanced user experience for package update processes by displaying the update status with package icons on the DSM desktop.
    • Supports resetting the passwords of all user accounts in the administrators group by pressing the RESET button on Synology NAS for four seconds.
    • Revamped the Service tab at Control Panel > Info Center. The tab focuses on the status of enabled services and packages, including local ports, router ports, and firewall permissions.
    • Enhanced Control Panel usability by reorganizing related functionality together.
    • Added a new Synology Account tab to consolidate future services provided through Synology Account.
    • Consolidated Domain/LDAP options to be configured in a new unified wizard.
    • Consolidated QuickConnect settings into the External Access tab.
    • Consolidated User and Groups settings.
    • Consolidated Theme and Application Portal options into Login Portal tab.
    • Consolidated email notification options into Notification > Email tab.
    • Consolidated WS-Discovery into File Services > SMB.
    • Consolidated Network > DSM Settings into Login Portal > Web Services.
    • Relocated the SMB Server Signing option to File Services > SMB > Advanced Settings.
    • Moved Shared Folder Sync into the File Services tab.
    • Moved the Enforce 2-factor authentication option into the Security tab.
    • Modularized DHCP Server into a package.

Synology DSM 7.1: Supported NAS

If you don’t have a NAS at hand but want to try out DSM 7, you’ll need to pick up one of the best NAS available.

21-series

  • DS1621+
  • DS1821+
  • RS1221+
  • RS1221RP+
  • RS2421+
  • RS2421RP+
  • RS2821RP+

20-series

  • DS120j
  • DS220j
  • DS220+
  • DS420j
  • DS420+
  • DS620slim
  • DS720+
  • DS920+
  • DS1520+
  • RS820+
  • RS820RP+

19-series

  • DS119j
  • DS419slim
  • DS1019+
  • DS1819+
  • DS2419+
  • DS2419+II
  • RS819
  • RS1219+

18-series

  • DS118
  • DS218j
  • DS218play
  • DS218
  • DS218+
  • DS418j
  • DS418play
  • DS418
  • DS718+
  • DS918+
  • DS1618+
  • RS818+
  • RS818RP+
  • RS2418+
  • RS2418RP+
  • RS2818RP+

17-series

  • DS1517
  • DS1517+
  • DS1817
  • DS1817+
  • RS217

16-series

  • DS116
  • DS216se
  • DS216j
  • DS216play
  • DS216
  • DS216+
  • DS216+II
  • DS416j
  • DS416slim
  • DS416play
  • DS416
  • DS716+
  • DS716+II
  • DS916+
  • RS816
  • RS2416+
  • RS2416RP+

15-series

  • DS115j
  • DS115
  • DS215j
  • DS215+
  • DS415play
  • DS415+
  • DS715
  • DS1515
  • DS1515+
  • DS1815+
  • DS2415+
  • RS815
  • RS815+
  • RS815RP+

14-series

  • DS114
  • DS214se
  • DS214play
  • DS214
  • DS214+
  • DS414j
  • DS414slim
  • DS414
  • RS214
  • RS814
  • RS814+
  • RS814RP+
  • RS2414+
  • RS2414RP+

13-series

  • DS213j
  • DS713+
  • DS1513+
  • DS1813+
  • DS2413+

Synology DSM 7.1: How to install

Ready to give the latest release of DSM 7.1 a try? It’s currently out as a beta and can be installed manually by following these steps:

  • Visit Synology Download Center.
  • Select your NAS model using the drop-down menus.
  • Click on Download under DSM 7.1.
  • Log into your NAS.
  • Go to Control Panel > Update & Restore > Manual DSM Update.
  • Click Browse and select the downloaded DSM 7.1 update file.
  • Click OK to update DSM.
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