Page 227 - Cloud computing: From paradigm to operation

Framework and requirements for cloud computing 1

Table II.5 – Physical machine for hyper-scale deployment – use case
Derived – Minimum energy consumption (see clause 7.1.2)
requirements – No additional ports (see clause 7.5)
– Authorized access (see clause 7.5)
– Hot-plug support (see clause 7.6)
– Visual indications (see clause 7.1.4)

Table II.6 – Physical machine for unmanned deployment – use case

Title Physical machine for unmanned deployment
Description This use case covers the situation where physical machines will be in places where physical
access is extremely difficult or only available at infrequent intervals. In this case, a single
physical machine will typically be implemented as a server blade that fits into a specially built
rack. The rack will typically also include storage, management and networking equipment,
which might or might not be implemented using similar blades.

Roles/sub-roles CSP: cloud service operations manager.
Figure In this type of deployment, physical machines
are constructed for deployment in locations
where physical access is very tightly
constrained. These will typically be inside some
form of self-contained "capsule" rather than a
normal building.
Examples are systems deployed in underwater
containers for positioning close to coastal
urban centres.

Pre-conditions CSP: The CSP wishes to deploy physical machines in locations where human access will not be
(optional) possible for the majority or operational time.
Post-conditions The physical machines are left running without human access for periods of six months or
(optional) more.
The data centre management system can deploy workloads to the machine. In the event of
failure, the machine can be taken off line, remote diagnostics can be run and the machine
either returned to service or taken permanently offline.
Derived – Minimum energy consumption (see clause 7.1.2)
requirements – Cooling component replacement (see clause 7.1.3)
– Cooling component redundancy (see clause 7.1.3)
– Interface for controlling fan speed (see clause 7.1.3)
– Self-checking mechanism (see clause 7.1.6)
– Remote management (see clause 7.3)
– Diagnostic of physical machine (see clause 7.3)

219