Cloudware Operations and Management - Guide to Cloud Computing for Business and Technology Managers - page 389

Respondents
Who Agree Reason

Improved system reliability and availability 50%

Pay only for what you use 50%

Hardware savings 47%

Software license savings 46%

Lower labor costs 44%

Lower maintenance costs 42%

Reduced IT support needs 40%

Ability to take advantage of the latest funtinality 40%

Less pressure on internal resources 39%

Solve problems related to updating/upgrading 39%

Rapde deployment 39%

Ability to scale up resources to meet needs 39%

Ability to focus on core competencies 38%

Take advantage of the improved economies of scale 37%

Reduced infrastructure management needs 37%

Lower energy costs 29%

Reduced space requirements 26%

Create new revenue streams 23%

A broad set of concerns identified by the NIST working group on cloud
security includes the following:

• Potential loss of control/ownership of data
• Data integration, privacy enforcement, data encryption
• Data remanence after deprovisioning
• Multitenant data isolation
• Data location requirements within national borders
• Hypervisor security
• Audit data integrity protection
• Verification of subscriber policies through provider controls
• Certification/accreditation requirements for a given cloud service

The top workloads mentioned by the users involved in this study are data
mining and other analytics (83%), application streaming (83%), help desk ser-
vices (80%), industry-specific applications (80%), and development environ-
ment s (80%).
The study also identified workloads that are not good candidates for
migration to a public cloud environment:

• Sensitive data such as employee and health-care records
• Multiple codependent services (e.g., online transaction processing)