Changes between Version 24 and Version 25 of orca-introduction

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Timestamp:
04/22/11 21:13:35 (8 years ago)
Author:
ibaldin (IP: 108.65.61.102)
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  • orca-introduction

    v24 v25  
    3636Authorities delegate resources to brokers (one authority can delegate resources to several brokers). Brokers hold the promised resources until Service Managers request them. Brokers issue tickets for resources from different authorities to a Service Manager and a Service Manager redeems those tickets at Authorities. Authorities instantiate the resource slivers and pass the control of them to the Service Manager. Pluggable control and access policies help mediate these transactions. Query interfaces allow actors to asynchronously determine the state of other actors.  
    3737 
    38 Slices are used to group resources together. A slice in a Service Manager represents resources owned by a particular user (e.g. for the purpose of an experiment). A slice in a Broker represents a portion of slivers given to a particular service manager slice from this Broker. If a Service Manager acquires resources from multiple brokers, they are not aware of each other. A slice in an authority represents the resources given by this authority to a particular service manager slice. Notice that architecturally in ORCA ''only the Service Manager knows the exact composition of the slice''. All other actors may have only a partial view of the slice.  
     38Slices are used to group resources together. A slice in a Service Manager represents resources owned by a particular user (e.g. for the purpose of an experiment). A slice in a Broker represents a portion of slivers given to a particular service manager slice from this Broker. If a Service Manager acquires resources from multiple brokers, they are not aware of each other. A slice in an authority represents the resources given by this authority to a particular service manager slice. Notice that architecturally in ORCA ''only the Service Manager knows the exact composition of the experimenter's slice''. All other actors may have only a partial view of the experimenter's slice.  
    3939 
    4040== Naming ==