I m having a problem... my synology Ds211j with 2x2tb on raid 1 is having slow transfer speed via lan.

the LAN is running on 10/100mbps connections.

The transfer speed is ard 30kbps

the ds211j is new. Just bought last week...

Issit my setting problem?
i have attached the usage image of me transferring a 1.8gb file to the nas across the LAN network

Memory usage is 29% and the cpu usage is 3%
The max speed is 40kb/s

That's correct if you're running 1 or 2 hardisks. But if you start running 4x hardisk, the bottleneck will be the Gigabit LAN.

Wish I'm running 10GBe because my transfers saturate at 120MB/s across my network.
May be a little late but what budget do you have? The two brands above (even though nice) are VERY expensive and if you're just using it for media / entertainment files, RAID 5 is overkill in my opinion. Setting up the Microserver is super easy actually and very much cheaper. Put an OS in and you should be fine. I have one with 4 x 2TB in RAID 0 setup for space and another eSATA 4 bay casing with 4 x 2TB drives also in RAID 0 connected to it. The Microserver is connected on my home network running Gigabit LAN. Now that I know that the Microserver can be had for RM 900, I'm thinking of getting another.

In my opinion, media / entertainment files do not need redundancy. May be a slight hassle but these files can be downloaded again if required.

few Q:

1) 10/100 LAN or wireless?
2) did u turn on CIFS performace ( go to  synology admin page=> control panel -> win/Mac/NFS section ->tick the Optimize CIFS database operation)?
3) use Fix IP or DHCP for this NAS?
4) go to Storage manager -> HDD management - check did u tick the "Write cache support"
5) upgrade to latest firmware :Version: DSM 3.1-1742; Build Date: 2011/06/08
if above still cannot solve your issue, please install teamviewer and we can provide remote support.

didnt know the eSATA of the microserver was port multiplier able. Did u update BIOS or anything? Do you think any port multiplier card can work?

Very observant !  Yup, the onboard eSATA port on the Microserver does not support port multiplier. I had to use a 2 port Silicon Image 6Gbps eSATA PCIe x1 card that came with the external casing.

Write and read throughput not as fast as the Microserver's AMD chipset. Slightly lower but then again the Gigabit network makes everything else equal.

But what I am not too pleased about the eSATA box is that I cannot have .rar files in the same partition where I want to extract. It will hang. As long as it does not do read AND write at the same partition, it works fine.

A question to you would be how much of storage you require?

The Synology will give you 4TB (or 6TB with the latest 3TB drives) while the Microserver will give you double the amount of space.

Secondly, estimated how many clients are connected concurrently and accessing the new media server simultaneously?

Anyone know the different of  Dlink DNS-320,  DNS-323,  DNS-325 ?  i view the website it's all about the same. Also anyone know which one can stream 1080p movie without lag ? ?

thanks again in advance 

Either 1 will do the job. If you looking which 1 more popular in here, than count the user here. NAS seldom see any promotion. Maybe can get the 2nd hand.