On 11/12/13 14:15 -0500, Tzu-Mainn Chen wrote:
Hi,I'm trying to clarify the terminology being used for Tuskar, which may be helpful so that we're sure that we're all talking about the same thing :) I'm copying responses from the requirements thread and combining them with current requirements to try and create a unified view. Hopefully, we can come to a reasonably rapid consensus on any desired changes; once that's done, the requirements can be updated. * NODE a physical general purpose machine capable of running in many roles. Some nodes may have hardware layout that is particularly useful for a given role. * REGISTRATION - the act of creating a node in Ironic * ROLE - a specific workload we want to map onto one or more nodes. Examples include 'undercloud control plane', 'overcloud control plane', 'overcloud storage', 'overcloud compute' etc. * MANAGEMENT NODE - a node that has been mapped with an undercloud role * SERVICE NODE - a node that has been mapped with an overcloud role * COMPUTE NODE - a service node that has been mapped to an overcloud compute role * CONTROLLER NODE - a service node that has been mapped to an overcloud controller role * OBJECT STORAGE NODE - a service node that has been mapped to an overcloud object storage role * BLOCK STORAGE NODE - a service node that has been mapped to an overcloud block storage role * UNDEPLOYED NODE - a node that has not been mapped with a role * another option - UNALLOCATED NODE - a node that has not been allocated through nova scheduler (?) - (after reading lifeless's explanation, I agree that "allocation" may be a misleading term under TripleO, so I personally vote for UNDEPLOYED) * INSTANCE - A role deployed on a node - this is where work actually happens. * DEPLOYMENT * SIZE THE ROLES - the act of deciding how many nodes will need to be assigned to each role * another option - DISTRIBUTE NODES (?) - (I think the former is more accurate, but perhaps there's a better way to say it?) * SCHEDULING - the process of deciding which role is deployed on which node * SERVICE CLASS - a further categorization within a service role for a particular deployment. * NODE PROFILE - a set of requirements that specify what attributes a node must have in order to be mapped to a service class Does this seem accurate? All feedback is appreciated! Mainn
Thanks for doing this! Presumably this is going to go on a wiki where we can look at it forever and ever? -- Jordan O'Mara <jomara at redhat.com>Red Hat Engineering, Raleigh
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