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[feliz2020]

I bought this product on IT year end sales, price about USD 216. its affordable and meets my budget of basic 4-bay requirement.

It comes with 1.2Ghz and 512MB memory, but I couldn't find this newly product review online. (I notice that firmware was released in April 2014, maybe launched in Australia earlier)

[feliz2020]

Comparison table
(box, I dont understand why its compare with 2 bay )

[feliz2020]

Specs & Features

[feliz2020]

[feliz2020]

Top View


Front View


Side View

[feliz2020]

Back View



Open Top View

[feliz2020]

Teardown View




12" Fan connector (3pins)

[feliz2020]

Base view


Front base view USB3.0 x1

[feliz2020]

Last, slot in HDDs
 

[JavaLawyer]

The DNS-340L was recently released.  I'm not sure if this product will be released in the United States. At present it's only available overseas and the D-Link USA  FTP and website do not contain any support material. This forum only contains boards for U.S. released products. I'll see what I can find out about the plans for this model. ??

[Kakashi::.]

D-Link USA is targeting Late February / Early  March at the latest for general availability of this model in our region. 
We should see a new board in this forum once this model becomes available.
 

[feliz2020]

System
Intel i7 2.13GHz
RAM 4GB
Win7 Ultimate 64bit SP1
Network LAN D-Link DGS-1008A switch
NAS D-Link DNS-340L 4bay ShareCenter
SingleDsk in NAS - WD Green 6TB x1
RAID 5 in NAS - WD RED 2TB x4

I don't know how to read the result between RAID 0 & RAID 5, does it tell the quality?


Single disk in NAS




RAID 5 disk in NAS

[JavaLawyer]

Your results indicate (as expected) that RAID-0 performance is better than RAID-5.  Write speed is 75 MB/s using RAID-0 and 50 MB/s using RAID-5.

[feliz2020]

I thought data distribute write to 5 disks speed should be faster than single disk.
Wondering how does RAID 1 performance...
Data migrate taking hours...

[JavaLawyer]

I thought data distribute write to 5 disks speed should be faster than single disk.
Wondering how does RAID 1 performance...
Data migrate taking hours...

Off all HDD configurations, RAID-5 will always have the LOWEST performance. The RAID-5 protocol ensures data redundancy. If one HDD fails, you will not lose any data. That type of data protection comes at the cost of a more complex configuration and lower read/write times. Also keep in mind that a RAID-5 array with four HDDs will use ~25% of the usable space for redundancy. For example, if you have four 2TB HDDs (8TB total), the RAID-5 array will have a total size of ~6TB. Conversely, RAID-0 will have the best R/W performance, but is very risky since the failure of one HDD will result in a loss of 100% of your data. RAID-1 and Standard configuration will have similar performance to one another -- both will be faster than RAID-5, but slower than RAID-0.