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

Can i put an 8tb m.2 in the m.2 slot

Accepted Answer

No.  The M.2 is for cache only and limited to 2GB each NVMe.  WARNING-  it is very picky for NVMe's.  I tried it with WD and Samsung and they burned out within 6 months.  Synology sells NVMe's that they make and I would recommend.  I don't like being stuck to the MFG drives, but they work.  Just based on personal experience.  Synology 920+ (8GB Ram, 4 x 16tb Seagate Exos X16)

Question 3

how much storage space come with this device?

Accepted Answer

None.  You need to buy hard drives

Question 4

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.

ASIN	B0C6927XPX
Best Sellers Rank	99,763 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 74 in Network Attached Storage (NAS) Devices
Box Contents	media-converters,media-storage-and-organization-products
Brand Name	Synology
Color	black / black
Compatible Devices	Computers, Laptops & Mobile Devices
Customer Reviews	4.7 4.7 out of 5 stars (630)
Data Transfer Rate	1 Gigabits Per Second
Digital Storage Capacity	36 TB
Enclosure Material	Metal
Form Factor	AT
Hard Disk Description	Mechanical Hard Disk, Solid State Drive, Hybrid Drive
Hard Disk Form Factor	2.5 Inches
Hard Disk Interface	Serial ATA
Hard Disk Rotational Speed	5400 RPM
Hardware Connectivity	PCI, Solid State Drive, eSATA
Installation Type	External Hard Drive
Item Type Name	Synology NAS
Item Weight	1.3 Kilograms
Manufacturer	Synology
Manufacturer Part Number	DS224+
Media Speed	225
Model Name	DS224+
Model Number	DS224+
Network Connectivity Technology	Ethernet
Number of Items	1
Product Features	Not_Performance_Used
Product Warranty	3 Years
Read Speed	225 Megabytes Per Second
Specific Uses For Product	Personal
UPC	846504005253

Synology 2-Bay DS224+ (Black) NAS, Metal, Surface Mount, Compatible with Computers & Laptops

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