I only know what I know...which is my IT world. Having two datacenters that were physical servers attached to a SAN that "attempted" to replicate and then migrating. For a SMB small IT shop that happens to have two datacenters already in place...this has been ideal. I can have a generalist maintain the system and we have a private cloud for DR with hardly any effort...the biggest gain by far!
The Synology DiskStation is well suited as a NAS solution, easy enough to mirror a Windows file server shares setup. Access to the Hyperbackup utility eliminates the need to purchase a tape backup solution. A portable USB drive can be used as the initial backup target. For air gap purposes can connect Hyperbackup to the various cloud providers such as AWS, Azure, GCP to copy backup data there. Utilizing it as a backup solution has also been great, instead of purchasing a tape solution, tapes and an offsite tape repository. Active Backup for Business is another excellent backup utility for physical servers, VMWare virtual machines, etc. Restoring files is fairly intuitive. Until Synology introduced the dual controller setup, using it as a SAN was less appropriate as there was occasional downtime when the controller had an issue but this was less important for the scenarios we were using it for. It would be more of a concern if we had used it for things that require more robust uptime requirements. Overall we are happy with the features of the Synology DiskStation.
Deduplication and Compression - SimpliVity keeps the space consumption to a minimum. We currently have 60 servers running virtually and we still have room to grow. This really helps with the backups as we can have longer retention.
Backups - Ability to keep backups for longer and to create multiple backup policies for a VM is a breeze. You can have a backup policy for each datastore as well as a separate backup policy for the same VM.
Creating Datastores is very easy. No more messing around with LUNS and iSCSI. Just go to the SimpliVity tab and select create datastore and it's done. You can also increase the datastore on the fly as well as have a datastore bigger than 2TB.
File level recovery is included as well. The whole backup process in SimpliVity can help you do away with other software.
Synology DiskStation offers lots of options for creating links to share files or request that some uploads files. It makes it really easy to just share a link that can have an expiration or a set number of times it is accessed.
We always had enough storage on our Synology DiskStation, we never had to worry about something being too big to upload or share.
Love how you can create folders that are shared and also have some that are private. This makes it so easy to have shared collaborations with coworkers or clients, but also allows you to have a private place to save things that only you need.
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.
As long as Synology give us support for our hard drivers we will not change. I know Synology has now forced their hands to buy their own hard drivers and their new line of products. But if we still have support for old hard drivers from other manufacturers then we will still use Synology Nas. Otherwise we change manufacturers
It sits nicely ontop of VMWare and is easy enough to use. Some improvements to the UI could be done, such as placing buttons where it is expected to have them not in unusual places, so you have to hunt for them. The backup and restore is intuitive and makes things super easy if you need to do a quick rollback. Space savings on multiple VMs and backups means we are backing up more than we need which gives us confidence in what we do. Updating the system is also fairly easy and their support has always been fantastic. They will contact us if they detect any issues, usually before we notice them!
The Synology DiskStation is easy to set up and manage. The interface is clean and features are well documented. These units are reliable and can be set up to do scheduled integrity checks so failures can be mitigated before they halt business operations. The available packages for expanded roles makes these devices versatile.
Support is very good. With proactive support, you are supported by an engineer in North America who answers the phone and immediately begins assisting with your issue. The folks I have dealt with in the last several years have been very skilled and it is rare to have a ticket open for more than a day or two. Issues affecting production are dealt with appropriately and are escalated within the support organization.
Unfortunately, the one time I've had to reach out to DiskStation support, it did not go well. My NAS appliance wasn't appearing on the network, and no matter what the support team tried, they could not get it back online. Instead of offering to send me a new unit, they told me to go buy a new one - obviously, this was a disappointing response and not very eco-friendly either! Fortunately, through some internet research of my own, and some ingenuity, I figured out I could restore my NAS to factory settings by removing all the drives and resetting. Only then did I realize I had a bad disk. I had to experiment for a while to figure out which one it was. Once I had done that, though, I was able to get the latest DiskStation loaded back on, no thanks to the DiskStation support crew. If notifications were rock solid, I suspect I would have caught the bad disk before it because an OS problem, but I never received a bad-disk notification.
Synology DiskStation packs a punch with the latest and greatest feature set which goes above and beyond many other vendors. It allows for a turn-key solution to cover almost every use case in the SMB market leaving other vendors behind.
HPE SimpliVity provided us with the ability to replace our existing infrastructure with a solution that provided better backup and recovery, and an off-site DR solution, at a lower price point than other solutions.
