CMS & Maintenance

Manage and maintain your Synology NAS servers with high efficiency via Central Management System, Resource Monitor, Storage Analyzer, Storage Manager, Log Center, and other DSM bulit-in features.

Central Management System

DSM has streamlined NAS management to the simplest form possible, but managing multiple DiskStations is still tedious work. With Central Management System, you can easily manage multiple Synology products by automating tasks and setting up policies to apply settings to groups of servers, thus reducing the marginal cost of maintenance to the minimum. A single dashboard provides access to relevant information and settings of all DiskStations, so abnormal behavior is promptly noticed.

The system status, disk health, storage usage, logs as well as real-time resource consumption of your Synology NAS are consolidated into a single console. This makes it easy for IT personnel to pinpoint where a problem originates as well as identify bottlenecks and plan for future system upgrades.

A distributed enterprise may set up servers for each of its offices. You can define precise policies to be applied to server groups. When a NAS joins a group, it automatically adopts its rules and becomes properly configured, without requiring you to tweak the settings one by one. Packages on individual servers are also accessible from the central interface, which allows of flexibility for you to fine-tune them afterwards.

Central Management System aggregates notifications coming from each NAS to the host server. You can decide whether and how you wish to be notified for more than 90 types of events, ranging from hardware malfunctions, insufficient storage space or canceled tasks. DSM and package updates can be installed from the same portal as well. With one click, modify all the servers you have.

  • System Monitoring
  • Group Policy
  • Notifications & Updates


Servers used to require constant attention. DSM, however, is not only equipped with an easy-to-use interface, but also strives to centralize and automate as many tasks as possible. It intelligently gathers and organizes all information required for maintenance, saving your time for the real emergencies.

  • Resource Monitor

    Keep an eye on the performance of a Synology NAS's CPU, memory, disks, and volumes in real-time. View all running and idle tasks. Or view and manage which users are currently connected and using system resources.
  • Storage Analyzer

    It helps you visualize the massive streams of data generated on your NAS. You can see how volumes and shared folders are used, who the heavy users are, and the disk usage trends over time, as well as identify and delete duplicated files.
  • Log Center

    Offers an easy solution to gathering and displaying log messages of network activities on your Synology NAS. It provides you with a centralized log management interface and a flexible search function to help you find useful information efficiently.
  • Resource Monitor
  • Storage Analyzer
  • Log Center
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  • Drive Health

    Storage Manager provides scheduled S.M.A.R.T. tests and detailed drive health information. With instant drive status information, you can replace drives in time and protect your data from unexpected hard drive failure.

  • Traffic Control

    Schedule, prioritize or designate speed limits for users and groups. Reserve network bandwidth for part of DSM services, and apply limits to others.

  • SNMP

    Support for Simple Network Management Protocol (SNMP) allows you to efficiently monitor connected DiskStations using a network management system (NMS). Download

  • Notifications

    Choose what you wish to be notified of from more than 60 types of events. Many mechanisms are available: desktop notifications, SMS, emails, as well as push notifications on your mobile devices.

Migration Assistant

For IT administrators preparing for a hardware upgrade, data migration can be a labor-intensive nightmare that inevitably comes with prolonged downtime. Migration Assistant automates this process between Synology NAS devices, removes any guesswork, and keeps the services available until the new system is ready to go in production.1

Full system migration

The entire original system – from data (volumes and LUNs) to packages to system configurations – is automatically replicated to the new one, eliminating error-prone manual operations.2 3

Minimal disruptions

Services remain available to employees throughout most of the migration process. Any change made in the meantime will be synced to the new system before the migration is complete, making for a seamless transition.

Efficient & reliable

The block-level migration ensures consistent replication performance and data integrity even when the original system is still serving applications and data, significantly reducing the total time required vis-à-vis file copy tools.


  1. Visit this FAQ for supported models. A step-by-step tutorial is available here.
  2. To avoid privacy concerns or potential conflicts after migration, settings such as Synology Account, licenses, and network-related configurations will not be migrated. Refer to this FAQ to see how to re-configure these settings.
  3. Migration Assistant is currently unable to migrate data to a different file system, such as from Ext4 to Btrfs.