1. Cloud Management Mechanisms
Cloud Computing
Lecture Note 7
Cloud Management Mechanisms
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2. Remote Administration System – 1/3
Definition
Tools and user-interface for external cloud resource administrators to configure and administer cloud- based IT resources
Implementation mechanisms
Implemented as a portal for remote administration and management of various underlying systems allowing cloud consumer side administrators to configure and manage cloud IT resources allocated to themselves
Integrated with resource management system, SLA management system and billing management systems
Mainly to centralize controls to external could resource administrators, to customize user control and to hand over as much as control in administrative tasks to cloud consumers
2 primary types of portals: usage and administration portal and self-service portal
Resource Mgmt.
System
SLA Mgmt.
System
Billing Mgmt.
System
Cloud Resource
Administrators
Cloud
Remote Administration
System

3. Remote Administration System – 2/3
Usage and administration portal
A general purpose portal to centralize management controls to different cloud-based IT resources and to provide IT resource usage reports
A part of numerous cloud technology architectures (Covered in the later Chapter)
Self-service portal
A shopping portal to allow cloud consumers to search an up-to-date list of cloud services and IT resources available for lease from a cloud providers
Items chosen by the cloud consumers are submitted to the cloud provider for provisioning.
Associated with the rapid provisioning architecture (Covered in the later Chapter)
Tasks commonly performed by cloud consumers via a remote administration console include:
Configuring and setting up cloud services
Provisioning and releasing IT resource for on-demand cloud services
Monitoring cloud service status, usage and performance
Monitoring QoS and SLA fulfillment
Managing leasing costs and usage fees
Managing user accounts, security credentials, authorization and access control
Tracking internal and external access to leased services
Planning and accessing IT resource provisioning
Capacity planning
Cloud providers are recommended to offer standardized APIs for remote administration system so that cloud consumers can reuse their front-end interface if they decide to move to another cloud provider or they are able to lease their services from multiple cloud providers simultaneously.

4. Remote Administration System – 3/3
Cloud A
Standardized APIs
On-premise
IT Resource
Cloud
Remote Administration
System
Standardized APIs
Cloud Resource Administrator Side Custom Front-end IT Resource Mgmt. Portal
Cloud
Remote Administration
System
Cloud B

5. Resource Management System – 1/2
Definition
An interface and a mechanism to coordinate IT resource in response to management actions performed by both cloud consumers and cloud providers
Implementation mechanisms
Virtual infrastructure manager (VIM – the core part of resource management system) - coordinating the server hardware so that virtual server instances can be created from the most expedient underlying physical server
Basically managing a range of virtual IT resources across multiple physical servers – creating & managing multiple instances of a hypervisor across different physical serves or allocating a virtual server on one physical server to another (or to a resource pool)
user-defined & custom-built remote administration system portal with APIs
VM0
VM1
VMX
VM0
VM1
VMY
VM0
VM1
VMZ
Hypervisor0
Hypervisor1
HypervisorN
PM0
PM1
PMN
VIM
Usage and Administration Portal
Remote Administration System
VM Image
Repository
Native VIM Console
Cloud Resource Administrator
Cloud Resource Administrator
Resource Management System

6. Resource Management System – 2/2
Roles and tasks
Managing virtual IT resource templates that are used to create pre-built instances such as virtual server images
Allocating and releasing virtual IT resources into the available physical infrastructure in response to the starting, pausing, resuming and terminating virtual IT resource instances
Coordinating IT resources in relation to the involvement of other mechanisms such as resource replication, load balancer and failover system
Enforcing usage and security policies throughout the lifecycle of cloud service instances
Monitoring operational conditions of IT resources
Interfaces & interaction
Accessed by cloud resource administrators employed by the cloud provider or cloud consumer
Directly accessed by cloud resource administrators of the cloud provider via the resource management system’s native console
Selectively accessed by could resource administrators of the cloud consumer via external APIs with which a user-defined remote administration system portal could be custom-built

7. SLA Management System Cloud Definition
A mechanism providing features related to the administration, collection, storage, reporting and runtime notification of SLA data
Implementation mechanisms
SLA data based on pre-defined metrics and reporting parameters stored on and retrieved from a separate repository
Cooperate with one or more SLA monitor mechanisms to collect the SLA data that can then be made available in near-real time to usage and administration portals to provide on-going feedback regarding active cloud services
The metrics monitored for individual cloud services are aligned with the SLA guarantees in corresponding cloud provisioning contracts.
Report
SLA Manager
Usage and Administration Portal
Remote Administration System
Log
QoS Log
Repository
Native SLA Console
Cloud Resource Administrator
Cloud Resource Administrator
Cloud Service Consumer
SLA Management System
SLA Monitor Agent
Cloud

8. Billing Management System
Definition
A mechanism dedicated to the collection and processing of usage data as it is related to cloud provider accounting and cloud consumer billing
Implementation mechanisms
Based on pay-per-use monitors to gather runtime usage data that is stored in a repository that the system components then draw from for billing, reporting and invoicing purpose
Different pricing policies based on pricing models, cloud consumers, IT resource types
Pricing models – traditional pay-per-use model, flat-rate, pay-per-allocation or their combination
Pre-usage payment system: up to pre-defined usage limits and blocked when exceeded
Post-usage payment system: unlimited usage and billed based on actual usage at the end of each period
Invoice
Pricing & Contract Manager
Usage and Administration Portal
Remote Administration System
Log
PPU Log
Repository
Native PPU Console
Cloud Resource Administrator
Cloud Resource Administrator
Cloud Service Consumer
Billing Management System
PPU Monitor Agent
Cloud

9. Cloud Computing
End of Lecture Note
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