Synology DiskStation is a best in class NAS system with the power and features to do so much more
Rating: 9 out of 10
October 19, 2021
AP
Vetted Review
Verified User
8 years of experience
Synology DiskStation is being used for multiple purposes across multiple organizations. The primary use is as a generic file server, but it is also being used as an all-in-one photo management solution (utilizing Synology's PhotoStation or Synology Photos in the latest version of DiskStation), a VPN server (either L2TP or OpenVPN), and an Active Directory Server. It is also used to host virtual machines to handle functions that the DiskStation can't handle natively (such as running a QuickBooks database, Ubiquiti UniFi Controller, etc.)
- Synology's DiskStation Manager (DSM) provides a robust RAID experience with multiple RAID types available, including Synology's own RAID implementation (Synology Hybrid RAID - SHR)
- DSM includes a full-blown app ecosystem to extend its functionality beyond its built-in features.
- Synology is constantly updating DSM with not only performance, bug and security fixes but with major changes as well. In fact, the newest version of DSM, DSM 7, was just recently released.
- The same version of DSM comes with all of Synology NAS products, from simple single drive models all the way up to enterprise-grade models with upwards of 20 drive bays.
- DSM is not just a simple firmware OS, it is a full-blown Linux OS with all the features and benefits (and pitfalls) that entails.
- The default file system for DSM is BTRFS. BTRFS provides some advanced functionality (such as snapshots, bit rot protection and compression) over Linux's default ext4 filesystem.
Cons
- While BTRFS is a more advanced file system than ext4, it also is in a perpetual state of development, with many features not fully functional and a plethora of bugs. Synology has managed to overcome many of these limitations by placing BTRFS on top of a LVM, but there are much better file systems that Synology could have used, such as OpenZFS.
- DSM's built-in backup software, HyperBackup, while robust, oftentimes runs into issues. Specifically, backups can be working fine for months or years, and then suddenly the backups will fail. Sometimes these failures can be resolved, but oftentimes the backups need to be completely restarted. Fortunately, even when the backup fails, the existing backups are still accessible, it is just that new backups can not be performed.
- The underlying Linux OS provides significant benefits, but also adds a fair amount of complexity. Most of that complexity is wonderfully hidden by the DSM interface, but when certain problems arise, delving into the Linux command line is not out of the question.
- Perhaps the biggest issue with Synology DiskStation is Synology's support. The issue isn't that the support is bad, but it can be frustratingly slow when dealing with a major issue. Synology does have a very active community that is always willing to help, but nothing beats first-party support.