HP Matrix Operating Environment Software - Manual (Page 26)

Volume service
The volume service provides a single volume from a storage array.
SAN connectivity service
The SAN connectivity service configures connectivity between endpoints in a SAN.
Requirement types
Service requirements are a specification of a property, behavior, or policy describing a goal state
to which a service or the service resources are managed to conform. When a service containing
requirements is received by SPM, a matching process occurs that evaluates the requirements against
services which could be built from existing resources as well as against resources which could be
created if needed. When a resource is created, it is constructed meeting the requirements. When
comparing requirements against existing resources, only services or resources matching the
requirements already, or those which could match by running automated reconfiguration on the
resource, satisfy the requirements.
Requirements are matched against a service or service resources. The requirement is said to match
or be satisfied if the service conforms to the requirement.
Service requirements are of two types:
•
Scalar requirements – requirements which describe a single property, behavior, or policy
•
Requirement Groups – requirements which group or contain a set of other requirements
All Of requirement
The All Of requirement is a Requirements Group containing other requirements. It specifies that
all of the requirements contained within must be satisfied in order for the All Of requirement to
be satisfied.
NOTE: Top-level service requirements are implicitly contained in an All Of requirement group.
Any Of requirement
The Any Of requirement is a Requirements Group containing other requirements. It specifies that
at least one of the requirements within this requirements group must be satisfied in order for the
requirement to be satisfied. The sub-requirements allowed within an Any Of requirements group
are the requirements allowed within the enclosing requirements group in which the Any Of
requirement is placed.
Connected To Fibre Channel Endpoint requirement
The Connected To Fibre Channel Endpoint requirement is used to require that matching
services must be accessible via the Network which contains the given WWN. The service need
not have an interface exposed on the network, but must allow an interface to the network at
sometime in the future. Use Host requirements to create an interface to the service on the network.
Connected To Network requirement
The Connected To Network requirement is used to require that matching services can be
accessible via the specified Network. The service need not have an interface exposed on the
network, but it must be able to have an interface on the network if desired. Use Host requirements
to create an interface to the service on the network.
26 Storage service policy