Solved

Strange network bottleneck

Posted on 2008-11-01
4
648 Views
Last Modified: 2012-05-05
Hi:

I have an enclosure HP BLC7000, my blade servers are BL465, interconected with gigabit switches descripted as "HP GbE2c Ethernet Blade Switch for HP c-Class BladeSystem (410917-B21)", on my servers the link speed says 1Gb on the status property, but doing tests, the only i can get is 100bmps,
i´m doing tests transferring files between blades running on the same enclusure and switches, to and from the SAN so i´m sure i can get more, i also tested with ftp "get xfilename NUL" command to stress it but the results are the same, when i transfer files from my local discs to the san y get 250mbps, so the hard drives are not a bottleneck, i wonder if any of you are having similar issue, thanks in advance for any advice

At this time the gig switches are not configured so i can not get cli or other management info, but next sunday i will assign ip address to the swicthes in order to manage them, i suspect that there is some thing wrong in there.

Victor
0
Comment
Question by:fizzeriano
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
4 Comments
 
LVL 42

Accepted Solution

by:
paulsolov earned 500 total points
ID: 22859327
check the settings on the switch for speed and duplex.  Make sure that both are ends are auto/auto or full/1gb.  If the one end has 100mb as a static settings your source will show 1GB but will only send as fast as the other side will allow
0
 

Author Comment

by:fizzeriano
ID: 22859547

Thanks, tomorrow i´ll be having access to the switch, let´s see,
i´ll keep informed
0
 

Author Comment

by:fizzeriano
ID: 22864699
Well,

actually the switch says 1000 as speed, but when i upgraded nic drivers to the last on the blades, and set them to 1000 full, the trafic between blades goes fine, with performance about 400 mbps but this is because a disk bottleneck, now, o have the 100mbps limit in my VMs on hyper-v rtm, but that´s another story...

thanks
0
 

Author Closing Comment

by:fizzeriano
ID: 31512393
Thanks for your contribution
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

This tutorial will go through the steps required to write a script that will back up the configuration settings of a HP-ProCurve switch. You will need to get the following things to follow this tutorial: Telnet Scripting Tool e.g. TST10.exe …
Learn about cloud computing and its benefits for small business owners.
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…
I've attached the XLSM Excel spreadsheet I used in the video and also text files containing the macros used below. https://filedb.experts-exchange.com/incoming/2017/03_w12/1151775/Permutations.txt https://filedb.experts-exchange.com/incoming/201…

734 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question