Solved

VMWare - Upload speed 1Gb/sec, download speed 100mb/sec

Posted on 2013-06-07
4
735 Views
Last Modified: 2013-07-10
I doubt anybody will be able to answer this for me, but it is worth a shot.  

EsXi 5 on an HP Proliant G5.  

Two ports from two physical network adapters - one Intel, one HP linked to a single vSwitch.  The VMKernel port is on this VSwitch.  

If I pull data from the server - to any of the three datastores, speeds do not go greater than 40-50mbit/sec.  However, if I pull data from the server, I can get speeds of 200-300mbit/sec easily.  

The network adapters and the switches (redundant Cisco 4506's) are both set to 1000 full.  I have tried putting one adapter into standby (in VMWare), then the other adapter into standby, but the problem persists.  So I know it is not a problem with the NIC's themselves.  That also kind of eliminates the switches at the cause of the problem.  

Any ideas?
0
Comment
Question by:CityNashuaIT
[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
  • 2
4 Comments
 
LVL 120

Accepted Solution

by:
Andrew Hancock (VMware vExpert / EE MVE^2) earned 255 total points
ID: 39231201
do you have a Battery Backup Write Cache for the Smart Array Controller?

and configured as 75% write, and 25% read?
0
 

Author Comment

by:CityNashuaIT
ID: 39234568
Interesting...I will look into this.  Is there a way to tell if the BB write cache is installed under VMWare?  I do not see anything about it via the ILO information menu, and with ESXi as the operating system I cannot run the HP ADU utility.

Edit: OK, I opened the server up - the battery backed write cache module slots are missing, so I am going to say that this server does not have one.
0
 
LVL 20

Expert Comment

by:compdigit44
ID: 39253712
What type of storage are you using? Local, SAN etc.. Also, are you transferring data over iSCSI or FC?
0
 

Author Closing Comment

by:CityNashuaIT
ID: 39314090
Found the problem.  The battery backup cache controller...does not have a battery attached to it.  Apparently in HP controllers this can cause very severe write delays.  Thank you for your assistance.
0

Featured Post

Forrester Webinar: xMatters Delivers 261% ROI

Guest speaker Dean Davison, Forrester Principal Consultant, explains how a Fortune 500 communication company using xMatters found these results: Achieved a 261% ROI, Experienced $753,280 in net present value benefits over 3 years and Reduced MTTR by 91% for tier 1 incidents.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
vm size discrepency 2 50
ESXi 5.5 incompatibility when migrating VM 9 103
Backup of system state (VMware) 19 89
Samsung Dex 3 45
When converting a physical machine to a virtual machine using VMware vCenter Converter Standalone or vCenter Converter Enterprise, if an adapter type is not selected during the initial customization the resulting virtual machine may contain an IDE d…
HOW TO: Upload an ISO image to a VMware datastore for use with VMware vSphere Hypervisor 6.5 (ESXi 6.5) using the vSphere Host Client, and checking its MD5 checksum signature is correct.  It's a good idea to compare checksums, because many installat…
Teach the user how to install and configure the vCenter Orchestrator virtual appliance Open vSphere Web Client: Deploy vCenter Orchestrator virtual appliance OVA file: Verify vCenter Orchestrator virtual appliance boots successfully: Connect to the …
Advanced tutorial on how to run the esxtop command to capture a batch file in csv format in order to export the file and use it for performance analysis. He demonstrates how to download the file using a vSphere web client (or vSphere client) and exp…

749 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