Notes

Waste types :

Green Software :
Green Software consist of
- C0
👉🏻
cpu is in oprating state
- C1
👉🏻
cpu clocks are holted by software
- C2
👉🏻
cpu clocks are holted by hardware
- C3
👉🏻
cpu is in sleep mode
- C4
👉🏻
cpu is in deeper sleep mode
- C5
👉🏻
learning of memory and cache memory
- C6
👉🏻
cpu is in deep power down mode
- C
👉🏻
defines degree of cpu
- P
👉🏻
defines frequency of processor
- P0
👉🏻
Processor run with maximum power and frequency
- P1
👉🏻
Power and frequency is scaled down then p0
- Pm
👉🏻
Processor run with minimal power and frequency

Energy saving software technique :
1. Computational efficiency -
It is type of efficiency which take minimal energy consumption to complete the task
It is achieve by following technique -
- Efficient algorithm
- Vectorization - gives us the best power backup
- Multi threading - saves time and energy as it runs multi threads
2. Data efficiency -
It consist of following steps:
- Buffering
- Manging disk input and output
3. What is context awareness -
- Power source awareness
- Platforms power policy
- Other context aware behaviour
4. Ideal efficiency -
- Operating system timer resolution
- Deep free cast residency
- Background activity

Evaluating and measuring software impact to platform power :
1. Data acquisition tool :
2. Software tools :
- Power informer
- Windows 7 power configuration
- Energy checker

Questions
1. what is power consumption ?
1. what is energy star ?
1. what is green IT and what is green IT matrix ?
1. Write a short note on enviromental impacts of IT .
1. What are green data center ?
1. Write a note on Green IT standards .
1. Define vectorization .
1. What is ideal efficiency and its application ?
1. What are the 3'R of green IT ?
1. Explain Green washing with an example.

Sustainable software development

What is sustainable software ?

Sustainable

Sort this later

IT infrastructure management
1. UPS (Uninterrupted power supply) and battery bank
- 2. Power distribution unit
  Horizontal and vertical
  Horizontal size - 10 unit
  Verticals Size - beyond 10 unit
- 3. Measuring switching and alarm functions
  - 1) Measurement function
  - 2) Switching function
  - 3) Alarm Functions
4. Efficient cabling
1. Server power management in the data center
- 2. Consolidation
  - Technique of consolidation are as follows:
    Server virtualization
    Storage virtualization
    Cloud computing

Three basic usage models for consolidated data centers
1. Real time server power monitoring
1. Power guard rail
1. Static power caping
1. Virtualization

Storage media power characteristics
- Hardi disk
  - Hardisk power characteristics
  - Operational state of hard disk
    Motor inside hard disk is known as spindle motor
  - Magnetic tape
  - Solid state drive (SSD)
    It is used to store data while system is off
- SLC And MLC
  - Single level cell (SLC)
  - Multi level cell (MLC)
    Its store than more than 2 bit data
    It also less power
- PLC and EMLC
  - Pre level cell (PLC)
  - Enterprise multi level cell (EMLC)
- D- Ram
  - Dynamic Random Access Memory

Energy management techniques for harddisk
- State Transition
  - On
  - Stand by
  - Off
- Dynamic RPM
- Caching
  To types of algorithms
  - Palaru
  - Pablaru

System level energy management
- RAID(Redundant Array of Inexpensive Disks) with power assumptions
  - EE-RAID
    (Energy Sfficient Redundant Array in Inexpensive Disk)
- Power aware data layout
  - PDC (Popular Data Concentration)
  - MAID (Massive Array of Idle Disk)
  - Green Store
- HSM (Hierarchical Storage Management)
  Its also known as
- Cloud storage
- Storage virtualization

Strategy to reduce carbon emissions

Full forms :
- Unit 1
  - GHG (Green House Gas)
  - PBB (POLYBROMINATED BIPHENYLES)
  - LEED (Leadership in energy Environmental Design)
  - FTC (FEDERAL TRADE COMMISSION)
  - UBPM (UNIFIED BACKGROUND PROCESS MANAGER)
  - SENS ( SYSTEM EVENT NOTIFICATIONS SERVICE)
  - CRT (CATHODE RAY TUBE)
  - CUE (CARBON USAGE EFFECTIVENESS)
  - CFC (CHLOROFLUROCARBON)
  - NCQ (NATIVE COMMAND QUEUING)
  - ITTD (INTELLIGENT TIMER TICK DISTRIBUTION)
  - WEEE (Waste Electrical and Electronic Equipment recycling)
  - TCP (TRANSMISSION CONTROL PROTOCOL)
  - DPC (DISTRIBUTED PROGRAM CALL)
  - DAQ (DATA AQUISITION TOOL)
  - 3R's (REUSE REDUSE RECYCLE)
- Unit 2
  - ISP INTERNET SERVIVE PROVIDER
  - DCIM (DATA CENTER INFRASTRUCTURE MANAGEMENT )
  - NAS NETWORK ATTACHED STORAGE
  - CRAC (COMPUTER ROOM AIR CONDITION UNITS)
  - DAS DIRECT ACCESS STORAGE
  - UPS uninterruptible power supply
  - PDU POWER DISTRIBUTED UNITS
  - SAN STORAGE AREA NETWORK

Individual level information (ILI)
- By reducing electricity / By saving energy consumption

Function level information (FLI)
- Data center energy efficiency
Data center power matrix
Emerging data center matrix
Carbon usage effectiveness
Data center energy productivity
Data center computer efficiency
Environmental consumer charge back

Organization Level Information (OLI)
Reporting green House Gas immition

Majoring mjaarity of sustainable ICT (ourself)

Enterprise green IT redinace
Physical infrastructure
IT human capability
IT manager capability

Measuring and organization green house realness

Sustainable IT service (ourself)
- Factors driving the development sustainable IT
  - Sustainable dimension of IT
    Service sustainability
    Temporal sustainability
    Cost sustainability
    Economic sustainability
    Organization sustainability
    Environmental sustainability
    Societal sustainability

SITS (Sustainable IT Service)
- What is green IT ?
- What is SITS ?