It is currently Tue Feb 25, 2020 3:24 am

All times are UTC - 7 hours [ DST ]

Recent News:



Post new topic Reply to topic  [ 23 posts ]  Go to page 1, 2  Next
Author Message
PostPosted: Fri Apr 11, 2008 6:41 pm 
Offline
1.5TB storage
1.5TB storage

Joined: Wed Apr 02, 2008 9:12 pm
Posts: 70
Thanks: 0
Thanked: 1 time in 1 post
Lately I've been experience poor tranfer speeds (read only) off my GBE connected MSS. I tried checking drivers, flowcontrol, firmware, reboots you name it. Write performance on the network was a clean 30-50mb/s and read performance was a dismal 13-15mb/s. I ran into this article:

http://www.ocmodshop.com/ocmodshop.aspx?a=900

That suggests vistas's on the fly network tuning may choke down large transfers. Sure enough, the 10 seconds it took to type in the commands fixed my transfer speed issues and I'm back up to 50-85mb/s on large transfers according to robocopy/vistas details tab.

M


Top
 Profile  
Thanks  

Attention Guest: Remove this ad by Registering with the MediaSmartServer.net Forums. It's Free!
 Post subject:
PostPosted: Sat Apr 12, 2008 1:42 am 
Offline
1.5TB storage
1.5TB storage

Joined: Wed Apr 02, 2008 9:12 pm
Posts: 70
Thanks: 0
Thanked: 1 time in 1 post
Just ran some more tests, was able to sustain 82-83mb/s on multigigabyte transfers as illustrated below.

I doubt there's more to get out of this box as we're hitting the maximum read rate from the drives in the mss themselves.

What a great little box. If you've been thinking about getting a GBE switch do it, they're not too expensive (I use Netgear) and adapters (my pc has an integrated Broadcom controller).

M


Attachments:
robocopy.jpg
robocopy.jpg [ 50.19 KiB | Viewed 5360 times ]
Top
 Profile  
Thanks  
 Post subject: I'll try it!
PostPosted: Mon Apr 14, 2008 6:51 pm 
Offline
2.0TB storage
2.0TB storage
User avatar

Joined: Tue Jan 29, 2008 8:33 pm
Posts: 167
Location: Virginia
Thanks: 1
Thanked: 21 times in 12 posts
Great Find----I'll try it!!

I have never gotten anywhere near those numbers and I have excellent gigabit switches, cables and router.

_________________
WHS 2011 with 12 TB storage, 5 connected PCs: 1-Win 7 Ultimate 32 Bit, 2-Win 7 Ultimate 64 Bit, 2-Win 7 Home Premium 32 Bit, DLink DIR-655 Wireless N Gigabit Router, HP MediaSmart TV, Roku Media Player, Apple TV2, iPhone 4, iPad2 3G


Top
 Profile  
Thanks  
 Post subject:
PostPosted: Tue Apr 15, 2008 7:18 am 
Offline
1.5TB storage
1.5TB storage

Joined: Wed Apr 02, 2008 9:12 pm
Posts: 70
Thanks: 0
Thanked: 1 time in 1 post
What kind of numbers are you getting now for read and write performance on your GBE?


Top
 Profile  
Thanks  
 Post subject:
PostPosted: Tue Apr 15, 2008 7:34 am 
Offline
1.5TB storage
1.5TB storage

Joined: Wed Apr 02, 2008 9:12 pm
Posts: 70
Thanks: 0
Thanked: 1 time in 1 post
Found a more detailed article on it:

http://www.vistax64.com/tutorials/72308 ... level.html

Good read!


Top
 Profile  
Thanks  
PostPosted: Tue Apr 15, 2008 8:40 am 
Offline
2.0TB storage
2.0TB storage
User avatar

Joined: Tue Jan 29, 2008 8:33 pm
Posts: 167
Location: Virginia
Thanks: 1
Thanked: 21 times in 12 posts
Actual speed according to Vista file transfer dialog box----I did not use a theorhetical performance benchmark or application----just what Vista actually said was transferring......

There may be something to this.....

I'm running Vista Ultimate SP1 32 Bit.....With the very latest drivers for my NIC (Realtek onboard 8111) and firmware for my router (D-Link DIR-655). And I am NOT using Jumbo Frames which have caused me issues in the past

According to the Vista File Transfer Dialog Box drop down---when you are actually transferring a file....

With Vista Auto Tuning enabled:
Copy to WHS averaged 1-2 MB a second
Copy From WHS averaged 9-11 MB a second

With Vista Auto Tuning disabled:
Copy to WHS averaged 3-4 MB a second
Copy From WHS averaged 16-20 MB a second

I ran about 20 tests with files between 1GB and 4GB using both settings (I stopped each file transfer when it appeared the speed had averaged out)

Interesting....

_________________
WHS 2011 with 12 TB storage, 5 connected PCs: 1-Win 7 Ultimate 32 Bit, 2-Win 7 Ultimate 64 Bit, 2-Win 7 Home Premium 32 Bit, DLink DIR-655 Wireless N Gigabit Router, HP MediaSmart TV, Roku Media Player, Apple TV2, iPhone 4, iPad2 3G


Top
 Profile  
Thanks  
 Post subject:
PostPosted: Tue Apr 15, 2008 11:53 am 
Offline
1.5TB storage
1.5TB storage

Joined: Wed Apr 02, 2008 9:12 pm
Posts: 70
Thanks: 0
Thanked: 1 time in 1 post
I think you're off to a good start. But you have ways to go. Out of the gate to 1GB I get about 50-60mb/s writing to the EX470. After 2gb it averages 40, and 3gb+ (i've tested up to 50gb) It will average about 30-35mb/s writing to the EX470.

Now reads however hold steady at 80mb/s according to Robocopy. The vista pull down details tab goes from 80-100mb/s on reads. Further while I transfer under the task manager network tab I see 60-70% utilization on my GBE.

Do you have flow control enabled on your adapters? Both on the EX470 and the vista boxes? How about driver updates on both sides? Lastly I found this online:

Have you tried disabling RDC?

http://www.maximumpcguides.com/disable- ... mpression/

Remote Differential Compression (RDC) allows data to be synchronized with a remote source using compression techniques to minimize the amount of data sent across the network.

Many pre-Windows Vista computers and devices are not compatible with RDC which makes transferring files across a network slower for a Windows Visa computer because it’s trying to use RDC.

You could be hitting that as well.

Michal


Top
 Profile  
Thanks  
 Post subject: Re: I'll try it!
PostPosted: Tue Apr 15, 2008 2:24 pm 
Offline
3.0TB storage
3.0TB storage
User avatar

Joined: Wed Feb 20, 2008 5:13 am
Posts: 431
Thanks: 7
Thanked: 25 times in 25 posts
johnrr6 wrote:
Great Find----I'll try it!!

I have never gotten anywhere near those numbers and I have excellent gigabit switches, cables and router.


I always get much faster speeds unless a huge transfer. Small 5GB transfers are over 200mbs, but when I do large ones like over 50GB I see the average transfer rate drop to around 80mbs. I know the burst rates easily surpass 500mbs to/from any of my PCs(not my cheap celeron laptop though, but it only has a 100mbs connection) and the MSS.

_________________
3TB MSS EX490(upgraded CPU-E6300(2.8Ghz dual core Pentium)),
4GB memory
57TB unRAID1a--49TB unRAID2--76TB unRAID3


Top
 Profile  
Thanks  
 Post subject:
PostPosted: Tue Apr 15, 2008 7:56 pm 
Offline
1.5TB storage
1.5TB storage

Joined: Wed Apr 02, 2008 9:12 pm
Posts: 70
Thanks: 0
Thanked: 1 time in 1 post
Hey Arronwt,

Could you describe your client a bit? Sounds like there's room to tweak on your side as well...

M


Top
 Profile  
Thanks  
PostPosted: Tue Apr 15, 2008 8:08 pm 
Offline
1.5TB storage
1.5TB storage

Joined: Wed Apr 02, 2008 9:12 pm
Posts: 70
Thanks: 0
Thanked: 1 time in 1 post
So in my research i ran into anther gem off the vista forums:

http://www.vistax64.com/tutorials/10932 ... limit.html
[/SNIP]
By default, Vista reserves 20 percent of the connection bandwidth for QoS traffic handled by the QoS Packet Scheduler. The reserved bandwidth is still available to other programs unless a program specifically requests priority bandwidth. Vista will then restrict the best effort traffic to 80 percent of the bandwidth so that high priority traffic can be accommodated. This will show you how to change the percentage of reserved bandwidth, or disable the reserved bandwidth to get back the full bandwidth all the time.
[/ENDSNIP]

I haven't done any before / after tests with QOS on or off but for those of you on 100mbps networks 20% may give you a noticable boost if vistas QOS is choking you down. By default i believe it is enabled. It was in mine and I know I didn't turn it on.


Top
 Profile  
Thanks  
 Post subject:
PostPosted: Tue Apr 15, 2008 8:12 pm 
Offline
2.0TB storage
2.0TB storage
User avatar

Joined: Tue Jan 29, 2008 8:33 pm
Posts: 167
Location: Virginia
Thanks: 1
Thanked: 21 times in 12 posts
Maliclipse wrote:

Do you have flow control enabled on your adapters? Both on the EX470 and the vista boxes? How about driver updates on both sides? Lastly I found this online:

Have you tried disabling RDC?

http://www.maximumpcguides.com/disable- ... mpression/

Remote Differential Compression (RDC) allows data to be synchronized with a remote source using compression techniques to minimize the amount of data sent across the network.

Many pre-Windows Vista computers and devices are not compatible with RDC which makes transferring files across a network slower for a Windows Visa computer because it’s trying to use RDC.

You could be hitting that as well.

Michal


Flow control was enabled on both....

My entire network is Vista which all have RDC and WHS which is based upon Server 2003 and I assume it has RDC as well as 2003 got it in version R2....

But hey----I'll try it as your original tip basically doubled my actual file transfer speeds

_________________
WHS 2011 with 12 TB storage, 5 connected PCs: 1-Win 7 Ultimate 32 Bit, 2-Win 7 Ultimate 64 Bit, 2-Win 7 Home Premium 32 Bit, DLink DIR-655 Wireless N Gigabit Router, HP MediaSmart TV, Roku Media Player, Apple TV2, iPhone 4, iPad2 3G


Top
 Profile  
Thanks  
 Post subject:
PostPosted: Tue Apr 15, 2008 8:26 pm 
Offline
1.5TB storage
1.5TB storage

Joined: Wed Apr 02, 2008 9:12 pm
Posts: 70
Thanks: 0
Thanked: 1 time in 1 post
John,

Might want to disable QOS too. I posted the link to the guide earlier in the thread. I havn't done any back to back tests with QOS on or off but according to the stuff online vista reserves 20% bandwidth if QOS is enabled.

I just did a big test, 94.4GB file transfered from the EX470 to my XPS. It took 21 minutes averaging 80mb/s.


Attachments:
File comment: Excellent EX470 performance, 94.4GB in 21 minutes - 80mb/s
94gb-80mbpersec.jpg
94gb-80mbpersec.jpg [ 62.89 KiB | Viewed 5131 times ]
Top
 Profile  
Thanks  
 Post subject: Take a look
PostPosted: Tue Apr 15, 2008 9:05 pm 
Offline
2.0TB storage
2.0TB storage
User avatar

Joined: Tue Jan 29, 2008 8:33 pm
Posts: 167
Location: Virginia
Thanks: 1
Thanked: 21 times in 12 posts
Didn't notice a difference.....

How is your WHS configged----how many drives??


Attachments:
File comment: Writing to MSS
Capture.JPG
Capture.JPG [ 33.31 KiB | Viewed 5124 times ]
File comment: Writing to PC from MSS
Capture1.JPG
Capture1.JPG [ 33.05 KiB | Viewed 5124 times ]

_________________
WHS 2011 with 12 TB storage, 5 connected PCs: 1-Win 7 Ultimate 32 Bit, 2-Win 7 Ultimate 64 Bit, 2-Win 7 Home Premium 32 Bit, DLink DIR-655 Wireless N Gigabit Router, HP MediaSmart TV, Roku Media Player, Apple TV2, iPhone 4, iPad2 3G
Top
 Profile  
Thanks  
 Post subject:
PostPosted: Tue Apr 15, 2008 9:13 pm 
Offline
1.5TB storage
1.5TB storage

Joined: Wed Apr 02, 2008 9:12 pm
Posts: 70
Thanks: 0
Thanked: 1 time in 1 post
It has 3 drives, a 500 and two 750s. I upgraded the ram to 2GB and have a LE-1640. I didn't notice any significant transfer speed difference with the CPU upgrade.

Just for kicks have you tried a direct connect? If you have a static ip on your WHS you should be a able to direct connect with a cable, no switch, and try the test. Something must be holding you back if you're getting a few megabytes per second uploading and only 17 downloading.

Have you tried turning flow control off on both ends?

Are you using CAT6 cables?

Have you tried transfering from one of your clients to another client?


Top
 Profile  
Thanks  
 Post subject:
PostPosted: Tue Apr 15, 2008 9:36 pm 
Offline
1.5TB storage
1.5TB storage

Joined: Wed Apr 02, 2008 9:12 pm
Posts: 70
Thanks: 0
Thanked: 1 time in 1 post
Just did some vista screenshots.


Attachments:
File comment: EX470 To XPS
ex470tovista.jpg
ex470tovista.jpg [ 115.46 KiB | Viewed 5116 times ]
File comment: XPS to EX470
xpstoex470-big.jpg
xpstoex470-big.jpg [ 124.89 KiB | Viewed 5115 times ]
Top
 Profile  
Thanks  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 23 posts ]  Go to page 1, 2  Next

All times are UTC - 7 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 6 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group