VM

VM

1. Security, firewall, router

2. OS+application+data center

3. Automated solution in data center through s/w

   • control os,application,security,memory backup plan co configuration
     • can be done anywhere and dedicated channel to access the data center

4. DATA CENTER

   • Network
   • Security, maintainance
   • Power supply
   • storage NAS/SAW
   • Compute, storage, network

5. HYPERVISORS

   • FC -Faster, higher range, bandwidth, faster transimmision and cover long distance
   • scalability
   • VM Encapsulation - snapshot, and cloning for data backup no loss of data

6. CHALLENGES OF VIRTUALIZATION

   • Security - hyperjacking taking control over the hypervisor which would result in unexpected responses or behaviours integrity of data in the vm might be comprimised and copy of data accumulated from the attacked vm can be misused
   • guest hopping- if someone embeds virus/ malware then security of vm might get compromised since the vm are all connected the virus/malware gets circulated which might inturn affect other vm
   • resource utilization managing vm sprawl- underutlized and overutilized (performance degradation)
   • compliance and management issues- managing rules, standards, confidentiality, software updates
   • Horizontal/vertical scaling - count keeps increasing the company needs to have a clear idea about the existing resources (capacity planning)
   • benefits of virtualization
     • Resource provisioning is fast and simple when virtualization is being used. There is no longer a need to set up physical machines, create local networks, or install other information technology components. As long as there is at least one point of access to the virtual environment, it can be spread to the rest of the organization.
     • Because virtualization doesn’t require actual hardware components to be used or installed, IT infrastructures find it to be a cheaper system to implement. There is no longer a need to dedicate large areas of space and huge monetary investments to create an on-site resource. You just purchase the license or the access from a third-party provider and begin to work, just as if the hardware were installed locally.
     • Most virtualization providers automatically update their hardware and software that will be utilized. Instead of sending people to do these updates locally, they are installed by the third-party provider. This allows local IT professionals to focus on other tasks and saves even more money for individuals or corporations.
   • Although you save time during the implementation phases of virtualization, it costs users time over the long-run when compared to local systems. That is because there are extra steps that must be followed to generate the desired result.