slow Network copying >12mbs

[srgsng25]

we are seeing painfully slow network copies from our windows home server too both windows 7 machines they are duplicate hardware for the 7 machines

server dual zeon 2.0ghz 4 gig ram
dual-port intel gig card teamed

Network switch 3com superstack 3 10/100 24 port layer 3

computer is

Amd 64 3200+ 2.0 GHZ
1.25 gigs of ram
32 bit os installed

windows 7 build 7600
NIC Reatek RTL8169/8110 gig GBE

average copy speed traverling 12 feet of cable and 1 switch is 7-12mbs

 

[zigzag3143]

we are seeing painfully slow network copies from our windows home server too both windows 7 machines they are duplicate hardware for the 7 machines

server dual zeon 2.0ghz 4 gig ram
dual-port intel gig card teamed

Network switch 3com superstack 3 10/100 24 port layer 3

computer is

Amd 64 3200+ 2.0 GHZ
1.25 gigs of ram
32 bit os installed

windows 7 build 7600
NIC Reatek RTL8169/8110 gig GBE

average copy speed traverling 12 feet of cable and 1 switch is 7-12mbs

whats changed? check the event viewer on the PC's and the server. what was the earlier tranfer speed?

Ken

 

[SquonkSC]

we are seeing painfully slow network copies from our windows home server too both windows 7 machines they are duplicate hardware for the 7 machines

server dual zeon 2.0ghz 4 gig ram
dual-port intel gig card teamed

Network switch 3com superstack 3 10/100 24 port layer 3

computer is

Amd 64 3200+ 2.0 GHZ
1.25 gigs of ram
32 bit os installed

windows 7 build 7600
NIC Reatek RTL8169/8110 gig GBE

average copy speed traverling 12 feet of cable and 1 switch is 7-12mbs

12mb/s is almost the maximum for 100mbit network.

You could hardly do any better.

1 byte is 8 bits.

100 megabit /8 = 12.5 megabyte

greetz

 

[srgsng25]

more info

forgot to mention this is a virgin install as of 12 am last night

ipv6 have been killed lol

what exactly am i looking for in the event viewer

 

[SquonkSC]

forgot to mention this is a virgin install as of 12 am last night

ipv6 have been killed lol

what exactly am i looking for in the event viewer

Nothing.

Read my post.

Greetz

PS. upgrade to gigabit lan will get you 50 to 70mb/s, but you'll need gigabit cards and gigabit switch.

 

[zigzag3143]

Michel

Isn't convention

100MB=100 megabyte

100Mb=100 megabit?

From 3 different networking sites [FONT=verdana, geneva, helvetica] The term "bps" specifies network bandwidth in bits per second. The term "Bps" specifies network bandwidth in bytes per second. [/FONT]

 

[srgsng25]

interesting i have gigabit gards in all the machines and i use to see great speed with xp and teh switch most time it was 30-40

so i am gonna have to dig up 2 gig switches

 

[SquonkSC]

Mhel

Isn't convention

100MB=100 megabyte

100Mb=100 megabit?

Net speeds are always mentioned in bits.

Regular card is 100 megabit = 12.5 megabytes.
Gigabit cards is 1000 megabit = 125 megabytes.

All theoretical of course, because you'll never reach those speeds.
In that light 12mb/s average is a wonderful score.

greetz

 

[zigzag3143]

If net speeds are in bits why is he only getting 7-12 megabit from 100megabit switch?

average copy speed traverling 12 feet of cable and 1 switch is 7-12mbs

Ken

 

[ultraplanet]

Isn't there another thread here where Realtek NICs are causing problems? They seem to be zeroing in on a driver problem...

http://www.sevenforums.com/network-sharing/22860-network-card-ethernet-not-plugged.html

 

[SquonkSC]

interesting i have gigabit gards in all the machines and i use to see great speed with xp and teh switch most time it was 30-40

so i am gonna have to dig up 2 gig switches

I am not calling you a liar, but 30-40 megabyte per second is physically impossible with a 100 megabit switch in between.

You were probably looking at 30-40 megabits per second, not megabytes.
Which is a resonable average speed for 100mbit.

The confusion is only natural, many people mix them up.

greetz

 

[zigzag3143]

Guys

Im missing something here

if net speeds are in bits why are we converting to bytes to see relative speeds

100o megabit nic
100 megabit switch

trensfer speed 7-12 mega bit? that seems slow, right?

Ken

 

[SquonkSC]

Guys

Im missing something here

if net speeds are in bits why are we converting to bytes to see relative speeds

100o megabit nic
100 megabit switch

trensfer speed 7-12 mega bit? that seems slow, right?

Ken

I assume the OP means 7 to 12 megabytes, since windows reports speeds in megabytes

 

[zigzag3143]

Guys

Im missing something here

if net speeds are in bits why are we converting to bytes to see relative speeds

100o megabit nic
100 megabit switch

trensfer speed 7-12 mega bit? that seems slow, right?

Ken

I assume the OP means 7 to 12 megabytes, since windows reports speeds in megabytes

Um no offense but if net speeds are always in bits and windows report them in bytes doesn't that mean almost always? <g>

 

[SquonkSC]

Guys

Im missing something here

if net speeds are in bits why are we converting to bytes to see relative speeds

100o megabit nic
100 megabit switch

trensfer speed 7-12 mega bit? that seems slow, right?

Ken

I assume the OP means 7 to 12 megabytes, since windows reports speeds in megabytes

Um no offense but if net speeds are always in bits and windows report them in bytes doesn't that mean almost always? <g>

LOL

Manufacturers, ISP's and network operators talk in bits.

Windows reports the card as 100mbit also, but transfers are always shown in bytes, kbytes or mbytes.

 

[Guy Scharf]

interesting i have gigabit gards in all the machines and i use to see great speed with xp and teh switch most time it was 30-40

so i am gonna have to dig up 2 gig switches

30-40 what? Bits, Bytes? And as reported by what tool?

The switch you quoted is a 100 mbps switch, so that limits your transfer rates to 100 mbps as the NICs in your computers will operate at 100 mbps not 1 gbps.

Networks don't operate at 100% utilization, so your actual transfer rate will be less than 100 mbps. I recently did some testing of transferring very large files across a 100 mbps network and found network usages of 40% to 60%, as reported by Task Manager. 60% of 100 mbps is 60 mbps. At 8 bits per byte, that would be about 7.5 million bytes per second.

TCP/IP packets have 18 bytes of overhead in each 1518 byte packet, so 7.5 million bytes of usage corresponds to about 7.4 MB of data.

(In all these numbers, "million" means 10^6 and not 1024^2.)

If you want maximum transfer rates, get a gigabit switch that supports large packets and enable large packets on both computers and in the switch.

 

[SquonkSC]

interesting i have gigabit gards in all the machines and i use to see great speed with xp and teh switch most time it was 30-40

so i am gonna have to dig up 2 gig switches

30-40 what? Bits, Bytes? And as reported by what tool?

The switch you quoted is a 100 mbps switch, so that limits your transfer rates to 100 mbps as the NICs in your computers will operate at 100 mbps not 1 gbps.

Networks don't operate at 100% utilization, so your actual transfer rate will be less than 100 mbps. I recently did some testing of transferring very large files across a 100 mbps network and found network usages of 40% to 60%, as reported by Task Manager. 60% of 100 mbps is 60 mbps. At 8 bits per byte, that would be about 7.5 million bytes per second.

TCP/IP packets have 18 bytes of overhead in each 1518 byte packet, so 7.5 million bytes of usage corresponds to about 7.4 MB of data.

(In all these numbers, "million" means 10^6 and not 1024^2.)

If you want maximum transfer rates, get a gigabit switch that supports large packets and enable large packets on both computers and in the switch.

Hi guy,

Your wording is different but your story is exactly what I told the OP a few posts ago.
Even the "get a gigabit switch" was mentioned.

But no harm done, I guess you missed that post, and the OP gets a second opinion.

greetz

 

[srgsng25]

network issues cont

here is a picture of me transferring a 700MB avi to my desktop at a whopping 6.43MB/Second

http://www.specialchildexchange.org/pics/Untitled-1.jpg

 

[SquonkSC]

here is a picture of me transferring a 700MB avi to my desktop at a whopping 6.43MB/Second

http://www.specialchildexchange.org/pics/Untitled-1.jpg

Are you copying from internal to remoter internal disk? or is on of them usb external disk?


Greetz

 

[srgsng25]

more

i am copying form windows home server with 3 500 gig drive just thrown in lol to my desktop over our private lan