Skip to main content

Cloud Computing - Virtualization

Virtualization:

  • Hosting all of a physical machine's hardware and software components independently on a single or shared hardware resource.
  • In virtualization, we can run multiple operating systems on a single machine at the same time. In the case of dual-boot, we can run an OS at a time.
  • Virtual Machine: VM is the set of virtual hardware devices, virtual RAM and virtual CPU that run like a traditional operating system.
  • Virtual Server: It is also a virtual machine running as a server. It can run one or possibly more server-based application. This server may be a database or messaging or anything else.
  • VMM (Virtual Machine Monitor): VMM consists of multiple virtual machines top of the hypervisor to handle all the VMs.
  • Hypervisor: Hypervisor consists of multiple VMs and communicates with the real hardware to provide the resources to the available virtual machines. It controls all the physical resources on the computer. two types of the hypervisor exist as shown in the below diagram.
        


  • VIM (Virtual Infrastructure Management): VIM is a tool that is used for managing multiple VMMs. openNebula is the open-source VIM available. Using the VIM tool, we can manage the multiple VMMs from single computer or console.
Virtualization Products:
  • Microsoft Hyper-V: This is a type 2 hypervisor. It supports live migration of virtual machines without any downtime. It has the ability of VM snapshots or checkpoints, So in case of any disaster or failure, user can roll back the VM configuration to the time when it was working fine.
  • Citrix XenServer: This is a type 1 hypervisor, so it can run directly on hardware. This improves the overall system utilization and increases application performance because it accesses the hardware directly. 
    • XenServer automatically balances the load among all the virtual machines. If any virtual machine is idle then Xenserver dynamically allocates the memory to the another VM(s) that need more resources. 
    • There is improved security, administration and delegated access in terms of the management
    • It supports live migration and site recovery services.
    • It supports dynamic load balancing.











Comments

  1. Inetsoft.com is a business intelligence tool that suggests the right visualizations for the data and gives non-analytst access to deep insights from flexible visualizations.

    ReplyDelete
  2. Thanks for your post. It's very helpful post for us. You can also visit virtualization research paper for more Victor Steel related information. I would like to thanks for sharing this article here.

    ReplyDelete
  3. I generally want quality content and I found that in your post. The information you have shared about virtualization is beneficial and significant for us. Keep sharing these kinds of articles here. Top Virtualization Training in Delaware

    ReplyDelete
  4. Thanks for sharing such an informative Article. I really Enjoyed. It was great reading this article. Keep posting more articles on
    Big Data Solutions 
    Advanced Data Analytics Services
    Data Modernization Solutions
    AI & ML Service Provider

    ReplyDelete

Post a Comment

Popular posts from this blog

LinkList implementation with Insert, InsertAt, Delete Methods in Java

Linklist Representation  Node.java   public class Node { int data ; Node next ; Node( int data , Node next ){ this . data = data ; this . next = next ; } } LinkList.java public class LinkList { Node head ; public void insert( int data ) { Node node = new Node( data , null ); if ( head == null ) { head = node ; } else { Node currentNode = head ; while ( currentNode . next != null ) { currentNode = currentNode . next ; } currentNode . next = node ; } } public void inserAtStart( int data ) { Node node = new Node( data , null ); node . next = head ; head = node ; } public void insertAt( int index , int data ) { Node node = new Node( data , null ); // if index is 0 or head is null then insert at start if ( index == 0 || head == null ) { inserAtStart( data ); } els

Python Language Basics - 2

Slice string in python: details= "Akshay Kumar Gupta--akshaygupta.me" # details[:6] and details[0:6] will give same result print(details[: 6 ]) # OUTPUT: Akshay # details[20:] and details[20:34] will give same result print(details[ 20 :]) # OUTPUT: akshaygupta.me # -1 denotes the reverse order print(details[ 11 ::- 1 ]) #OUTPUT: ramuK yahskA # Here -9 denotes the count from the end of the string print(details[:- 9 :- 1 ]) #OUTPUT: em.atpug #Both syntax gives the same result for reversing the string print(details[- 1 ::- 1 ]) #OUTPUT: em.atpugyahska--atpuG ramuK yahskA print(details[::- 1 ]) #OUTPUT: em.atpugyahska--atpuG ramuK yahskA Format print in python: print( "hi, My name is {} and I am a {}. I like {}." .format( "Akshay" , "Software Engineer" , "python" )) In the above print statement, "{}" refers to the placement of the values given in "format()" function. First value in the order "format()"

Print Given Number Pattern in Java

public class NumberPattern { public static void main(String a []) { for ( int i = 1; i <=4; i ++) { for ( int j =0; j <4; j ++) { int sum = i + j ; // if sum is greater than 4 then subtract 4 from the sum otherwise print the sum System. out .print( sum > 4 ? sum - 4+ " " : sum + " " ); } System. out .println(); } } }