CLOUD COMPUTING BY @MATCLAYTON

What is Cloud Computing? SAAS

PAAS

IAAS

Self Hosted

Self Hosted

IAAS – Infrastructure As A Service

PAAS – Platform As A Service

SAAS – Software As A Service

Pro and Cons

Advantages Disadvantages

Scalable on demand Reduced costs Reduced maintenance Pay as you go

Platform lock in Backups PCI Compliance / Audits IP blacklists Hidden hardware limits Quality of Service

(internal ping times) Service Level

Agreement Data location

Meeting Demand

Sudden Demand = FAIL

Convincing the CFO

It’s cheaper...

Reasons

Commodity hardware Specialist staff Better utilisation

Enterprise 5-10% Cloud 25-50%

Further convincing the CFO

DIY Cloud Computing

Expenditure Type Capital Expenditure Operational Expenditure

Cash Flow Server + Software purchased upfront

Payments on a monthly as needed basis

Financial Risk Upfront and uncertain returns

Monthly with matched returns

Income Statement Maintenance and depreciated capital expense

Maintenance only

Balance Sheet Software and hardware are carried as long term capital assets

Nothing on balance sheet

Final Predictions

Start-up's will increasingly utilise cloud computing to stay flexible and scale

Enterprises will take much longer to switch Clouds will become more responsive to

traffic spikes Public clouds will gain more traction that

private clouds Clouds will become increasingly cheaper

than in-house systems Greater transparency to security system

and audits

Flickr Love

http://www.flickr.com/photos/versageek/

http://www.flickr.com/photos/allspaw/ http://www.flickr.com/photos/anniem

ole/ http

://www.flickr.com/photos/sashawolff/ http://www.flickr.com/photos/colin_n/