Eucalyptus in cloud computing. Standards for elastic utility computing architecture for linking your program to useful systems. Supports both linux and Windows virtual machines.

1. Compiled by Pitiel

2. QUESTION 20
EUCALYPTUS IN CLOUD COMPUTING

3. EUCALYPTUS
 Stands for Elastic utility Computing Architecture for Linking
Your Programs To Useful Systems
 It is an open source platform for implementing Infrastructure
as a Service (IaaS) in a private or hybrid cloud computing
environment
 The Eucalyptus cloud platform pools together existing
virtualized infrastructure to create cloud resources for
infrastructure as a service, network as a service and storage as
a service.

4. EUCALYPTUSFEATURES
 Supports both Linux and Windows virtual machines
 Works with multiple hypervisors including VMware, Xen and
KVM
 Internal processes communications are secured through SOAP
and WS-Security
 Multiple clusters can be virtualised as a single cloud

5. EUCALYPTUSARCHITECTURE

6. MANAGED MODE
 In this mode, it just manages a local network of instances, which includes
security groups and IP addresses
SYSTEM MODE
 In this mode, it assigns a MAC address and attaches the instance’s network
interface to the physical network through the NC’s bridge
STATIC MODE
 In this mode, it assigns IP addresses to instances
THREEMODESOFEUCALYPTUS

7.  Users can run Amazon or Eucalyptus machine images as
instances on both the clouds
 It has 100% API compatibility with all the AWS services. There
are many tools developed to interact seamlessly between
AWS and Eucalyptus
 It is not very popular but is a string competitor to OpenStack
and CloudStack
ADVANTAGESOFEUCALYPTUS

8. Architecture Five main components
installation Is easy compared to other IaaS offerings
administration Strong CLI compatible with EC2 API
security Baseline security + component registration
popularity Medium
IaaS offering Public + private (hybrid)
SUMMARY

9. QUESTION 23
HYPERVISOR

10.  A hypervisor is a software that creates and runs virtual machines. It is also called a
virtual machine monitor. It isolates the hypervisor operating system and resources
from the virtual machines and enables the creation and management of those VMs
 The physical hardware that is used as a hypervisor is called the host
 It is paart of the private cloud that manages the virtual machines, i.e. it is the part
(program) that enables multiple operating systems to share the same hardware
HYPERVISOR

11.  Virtualisation of hardware components of the host computer
so that the virtual machines can be supported by the
hardware machines
 Determining and creating the number of virtual machines
 Is responsible for isolating all virtual machines in a single host
computer so that any changes to or usage of virtual machine
does not affect each other or the host itself
ROLESOFHYPERVISOR

12.  Hypervisor is used for data replication by data analysis firm
dealing with collecting and organising data
 Hypervisor enables server consolidation due to the
downloadable enhancements allowing servers to be
consolidated
USESOFHYPERVISOR

13.  Consolidates workloads
 It provides economic relaxation around the datacenter, OS backup,
hardware servers and even cuts down on power usage, making it an
overall cost-effective transition
 VMM offers better uptime, faster deployment, reduced workload and cost
predictions for operational needs
 Secures the operating environment from internal conflicts
 Reduces time consumption in testing and run-time debugging
 Automates the management processes, resulting in low operational
expenses
ADVANTAGESOFAHYPERVISOR

14.  Lacks the capability of running VMs on domestic computers
 Security may become an issue. While robust, hypervisors may
become an easy cyberattack target. Vulnerability increases
because of the centralised system, the company network,
server rooms
 Causes more intrusions and a possible denial-of-service attack
DISADVANTAGESOFHYPERVISOR

15. Type 1 hypervisor “bare metal” examples of type 1 hypervisors
are Citrix/Xen Server, Vmware ESXi and Microsoft Hyper-V
Type 2 hypervisor: hypervisors run on a host operating system
that provides virtualisation services. Examples of type 2
hypervisors include Microsoft Virtual PC, Oracle Virtual Box,
Vmware Workstation, Oracle Solaris Zones.
TWOMAINTYPESOFHYPERVISORS

16.  Runs directly on the underlying computer’s physical hardware,
interacting directly with its CPU, memory and physical
storage. For this reason, type 1 hypervisors are also referred
to as bare-metal hypervisors
 A type 1 hypervisor takes the place of the host operating
system
TYPE1HYPERVISOR

17.  Type 1 hypervisors are highly efficient because they have direct access to
physical hardware. This also increases their security because there is
nothing in between them and the CPU that an attacker could compromise
 Type 1 hypervisors often need a separate management machine to
administer different VMs and control the host hardware
ADVANTAGESOFTYPE1HYPERVISOR
DISADVANTAGESOFTYPE1HYPERVISORS

18.  Type 2 or hosted hypervisors, also known as client hypervisors
run as a software layer on top of the OS of the host machine.
They are used to abstract guest operating systems from the
host OS. Support guest virtual machines by coordinating calls
for central processing unit (CPU), OS. This makes it easy for an
end user to run a VM on a personal computing (PC) device
TYPE2HYPERVISOR

19.  The OS takes care of all the hardware
 Installing a type 2 is much easier than that of a type 1
 They have more points of failure since anything that affect the stability of the base
operating system can also affect the guest OS and the virtual machine. When the
base OS needs a reboot, all the VM will also be rebooted.
ADVANTAGESOFTYPE2HYPERVISOR
DISADVANTAGESOFTYPE2HYPERVISORS

20. T H E E N D
THANKYOUFORYOURCOOPERATION