Private Cloud

Cloud Definitions

So everyone is talking about Cloud Computing, does Cloud Computing necessary mean that you run your applications or systems in Amazon AWS, Google, Microsoft Azure or any other known cloud you know of?

 The short answer is NO, Cloud Computing is a model build on of characteristics, Service Models and Deployment Models om a combination. 

Cloud Computing Characteristics

  • Self-Service
  • Broad Network Access
  • Resource Pooling
  • Rapid elasticity
  • Measure service

Service Models

  • SaaS
  • PaaS
  • IaaS

Deployment Model

  • Private Cloud
  • Community Cloud
  • Public Cloud
  • Hybrid Cloud

 

NIST (National Institute of Standards and Technology) has written a great definition of Cloud Computing you can read up on on this link.

NIST Cloud Definition (PDF)

Verify that Jumbo Frames are working

So when working in the Private Cloud you often want to enable Jumbo Frames for your storage network. And if you are not in control of the end to end configuration and can veryfy all settings yourself. There is a easy way of testing if Jumbo Frames is configured all thay way.

You can simply run the ping command with the parameters -f and -l and set the length of the packet to verify if packets go through.

ping -f -l 9000 dest-ip

jumboframes

if Jumbo Frames are not enabled you will get the same result as shown above, if its enabled you should get a normal reply from.

Reply from 10.10.1.10: bytes=9000 time=1ms TTL=128