BlackArmor NAS Network Storage Server

[Birdb80]

Hi,

i have a problem with my Blackarmor 220 (4TB):

The Firmware is:  2000.0551

I connected the NAS to an AVM (Fritzbox) 100MBit Router and it worked just fine (about 10-11Mb/sec)

Then I bought me a new Gigabit Switch to get more Speed out of the NAS.

I bought an D-Link DGS-1005D 5-Port Desktop Gigabit Switch and connected everything to it.

--- 2 Desktop Computers, the Blackarmor and an Uplink to my Internet Router (AVM).

after this the Speed of the NAS dropped extremly - from 10Mb/sec to an average of  24kb/sec...

I tried different cabels and an other Gigabit switch but nothing helped.

The Connection between the 2 Desktop Computers increased from 10Mb/sec to around 60Mb/sec.

Has anyone an idea how to solve this?

Some Additional Infos:

Today i connected the NAS directly to my Desktop PC.

ReadSpeed was 60-90MB/Sec Writespeed: 25MB/sec.

Back in the Gigabitswitch --> 50kb/sec.....

Message Edited by Birdb80 on 12-09-2009 10:57 AM

[fzabkar]

What happens if the only devices connected to the switch are one desktop PC and the NAS?

[Chuck Tribolet]

Mb is megabit.  MB is megabyte.

If you were only getting 10-11 megabits, on 100 megabit connection, that's pretty slow.  I just ran a test where I copied a 136M file to the BA220 in 16.6 seconds.   The BA 220 has a gigabit connection, the computer has a 100Mbit connection.  I'll have to haul a laptop with a gigabit port up there and try it later.

[Chuck Tribolet]

With a Gigabit connection for the computer, 136Mbyte took 7.3 seconds.  In a perfect world, it would take about 1.3

seconds.  That sort of throughput is acheivable though whether the BA 220 can accomplish it I don't know.  I know 

that I get about 100mByte/second throughput with enterprise class hardware at work, even between different subnets 

(at least three switches in the path).

[Birdb80]

@fzabkar

I disconnected everything from the switch (even the Powercabel to clear the routing cache) - then connected just the NAS and my Desktop PC --> no changes (25-50Kilobyte/sec)

Same with my other PC.

I heard about the Problem of some Routers when you connect different types of Hardware(100Mbit & 1000Mbit) but the PC to PC connection works even when my 100Mit Router(Internet) is connected.

 @Chuck Tribolet:

Sorry i wanted to say that i get the full 10-11 Megabyte per second through my 100Mbit Router.

Speed on 100Mbit (Router1 NAS-PC)= around 10Megabyte / sec

Speed on 1000Mit (Router2 NAS-PC) = 25Kilobyte / sec

Speed on 1000Mit (Crossover NAS-PC) = 90Megabyte / sec

Spedd on 1000Mit (Router2 PC-PC)= 60Megabyte /sec

[Phat_Slug]

Wow - you just saved me from kicking that whole thing right out of the window...

I have exactly the same issue, with the same switch. Additionally, I have exactly the same issue with another D-Link device, a Gigabit Router called DIR-655.

Now here comes the fun part. Try to connect that s*** together with patchcables of different length, and sometimes, with some patchcables and some luck, you finally get a GIGABIT connection. But there is even more fun. It may run for a few days perfectly, then suddenly the speed drops down again!Then, you try the same set of cables over and over again, and suddenly it works with a different cable just perfect. The you disconnect and reconnect the exact same cable, and it runs low-speed again. This whole thing drives me nuts for over 2 weeks now.

If I connect my laptop directly to the switch, or the router, or the NAS, it works perfect! I always get a gigabit connection with no problems at all, straight away, doesnt matter which cable I am using, CAT5, CAT6, 1 meter or 5.

This is really getting on my nerves, I am sorry but this must not happen. Right now I am running low speed again and basically cannot use the NAS at all. So the cable orgy starts over again. As an interrims, I put a little fast ethernet switch between the NAS and the D-Link and it runs at 100MBit just fine, but I need 1000MBit.

Whats is the answer? Should I toss everything and buy something different? Please, Seagate, talk to D-Link and fix the issue, please!! Thank you!

[Chuck Tribolet]

Do you have the latest firmware in the router?

[Phat_Slug]

Sure, yes, thats the first thing I did, upgraded all to the latest release. No luck though.

[Birdb80]

At Christmas I will have the opportunity to test some other gigabit switches on a small LAN party.

If one of them works properly, i will tell you...... 

Since then i have to use the 100Mbit speed...

[Birdb80]

Happy new Year to all,

i tried an Netgear GS108 on christmas and the NAS did 50MB/sec

so it definitely is an incompatibility with the DLINK Switch....

I will now try to get me a Netgear switch and hope that the Problems are gone then.