We help IT Professionals succeed at work.
Get Started

How to estimate fiber channel bandwidth for ESX4 server?

richtree
richtree asked
on
756 Views
Last Modified: 2013-11-14
There is an IBM BladeCenter H with 2 Brocade fiber switches. There are 14 internal ports and 6 external ones. Each port is 4Gbps. There is also a fiber channel SAN (IBM DS4700, 15k SAS disk) with 2 controllers. Each controller has 4 fiber ports. Each port is 4Gbps. The plan is to install ESX4 on 2 HS22 blade server. If the blade server runs 10 virtual machines, then each virtual machine can only get 4Gbps/10=400Mbps which is a lot slower than local SATA disk.
Q#1. How to estimate the fiber channel bandwidth between blade server (ESX4) and the fiber switch? Is it practical to average the total bandwidth by the number of virtual machine and compare it to the bandwidth provided by local disk such as SATA or SCSI or SAS?
Q#2. If the fiber channel expansion card is dual port (4Gbps each), is it possible to get 4Gbps x2 = 8Gbps bandwidth for the blade server (ESX4)? If yes, how to configure it without upgrading the Brocade fiber channel switch?
Thanks.
Comment
Watch Question
Commented:
This problem has been solved!
Unlock 3 Answers and 5 Comments.
See Answers
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE