This post is more than 5 years old
15 Posts
0
3139
Differences between a cluster and a resource pool?
Hi,
I am studying for the 002 Cloud Infrastructure and Services Exam. After finishing the VILT and reviewing my notes, I am still unclear on why someone would set up a "global cluster" versus running everything from a shared virtual resource pool. Are these the same thing? Do they support each other? Is one or the other easier to manage/recover?
Thanks in advance for any feedback!
ULY1
2 Posts
0
October 11th, 2012 19:00
Hi Caroline,
Cluster are a Group of Server or HOSTS where you get your Resource Pool. its like aggregating the resources of memory, CPU , Network and Storage to create a Large Pool of resources.
I hope i answer your Question.
carolineh1
15 Posts
0
October 12th, 2012 08:00
Hi ULY,
That does answer my question, I think.
I did some research, and had concluded that a cluster is different from a resource pool because the cluster is a group of servers all set up to work toward the same purpose, where the resource pool is more just a big group of resources. Kind of like the cluster is a car with its parts (servers) already assembled to go somewhere, and the resource pool is a big scrapyard (with memory, CPU, network, and storage parts lying around) that can be used to build a car that meets your own needs.
It sounds like this consistent with your answer - let me know if I'm wrong, or if more detail is needed!
ULY1
2 Posts
1
October 15th, 2012 01:00
Hi caroline,
yes, your right.
Another thing- Using resource Pool will maximize the utilization of a resources. Traditionally if you dont have virtualization 90 to 95% of a server was under utilize. that's why there are server sprawl. anyway its onther topic.
thanks.
Take care.