12-08-2009 08:49 AM - edited 12-09-2009 10:57 AM
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.....
12-11-2009 07:56 AM
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.
12-11-2009 08:17 AM
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).
12-11-2009 09:34 AM
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.
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
12-16-2009 08:36 AM
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!
12-21-2009 11:09 AM
If one of them works properly, i will tell you......
Since then i have to use the 100Mbit speed...
01-01-2010 10:13 AM
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.