Question 1

How secure is this against malicious attacks? Does it have a firewall and anti-virus software?

Accepted Answer

The DSM software come with a number of features to prevent malicious attacks.  One of my units was hit with a ransomware attack.  Nothing import on the unit as it was used for security camera video storage.  I believe I was hit with what is called man in the middle hack.  My credentials were taken when I periodically logged in to view the camera images.  I was not taking the security seriously.  Now I have turned on HTTPS and 2FA (two factor authentication).  Point is that the features are there to secure you NAS but you have to make use of them.  Hope this helps.

Question 2

would this unit support a NVME cache module?

Accepted Answer

Yes the Synology DS1522+ supports 2 of the NVMe M.2's in mirror (RAID1) for write-back cache, or just 1 of them for read-only cache. (You cannot force it to use 1 of them for read-write). Starting with the year 2022 models, as of date of this review October 2022, Synology no longer lists as compatible any drive except their own brand (vendor-lock). However, if you look at the prior version of this unit Synology 1520+, you'll see other options that DO work like certain Seagate m.2 Ironwolf (but not all of them)..

Unfortunately, the Synology DSM 7.1 in these newer 2022 models will currently show a warning anything except their own brand of drives may not support all features and compatibility is not guaranteed either. Customers are not happy about this vendor-lock situation, hopefully Synology will cave in and certify other drives in the future.

Question 3

Can you install a 10gb nic in here?

Accepted Answer

No, this model does not have the slot for the 10gb nic.  You can see this by the absence of a square cutout such as the one on the back of the ds1522+.

Question 4

How often is the os/firmware patched?  i'd like to verify that this nas stays as secure as possible.

Accepted Answer

As needed. I've had a few updates (3 or 4) since I purchased my DS220+ last fall. Your NAS should be behind your router/firewall, and I don't allow access to mine outside of my network/home. Personally, I have no need to access it from the Internet, aside from update downloads.

ASIN	B0B4DFBRZV
Assembly Required	No
Box Contents	Main Unit X 1 Accessory Pack X 1 Quick Installation Guide X 1
Brand	Synology
Brand Name	Synology
Colour	Black
Compatible Devices	Android Phone, Windows PC, iPhone, macOS
Customer Reviews	4.6 out of 5 stars 493 Reviews
Importer Contact Information	9F., No.1, Yuandong Rd., Banqiao Dist., New Taipei City 220632, Taiwan
Item Type Name	NAS
Item Weight	4190 Grams
Manufacturer	Synology, Synology Inc., 9F., No.1, Yuandong Rd., Banqiao Dist., New Taipei City 220632, Taiwan
Manufacturer Contact Information	Synology Inc., 9F., No.1, Yuandong Rd., Banqiao Dist., New Taipei City 220632, Taiwan
Manufacturer Part Number	DS1522+
Model Number	DS1522+
Mounting Type	Floor Mount
Packer Contact Information	9F., No.1, Yuandong Rd., Banqiao Dist., New Taipei City 220632, Taiwan
UPC	846504004461
Unit Count	1 Piece
Warranty Description	3 Years

Synology DiskStation DS1522+ Network Attached Storage Drive (Black)

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