Comments on Chassis Mib
eah <eah@pau.synnet.com> Thu, 24 June 1993 21:15 UTC
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From: eah <eah@pau.synnet.com>
Subject: Comments on Chassis Mib
To: chassismib@cs.utk.edu
Subject: Time:4:40 PM OFFICE MEMO Comments on Chassis Mib Date:6/24/93 Unfortunately I haven't been monitoring the activity on this list as closely as I would have liked in the recent past. Now that I've had the time to review some of my accumulated mail, I'd have to answer Bob's recent query with a 2. Based on the comments I've read since the May 28 draft, the following is a brief listing characteristics that one or more individuals have expressed a desire to see that are not reflected in that draft: - many:many mapping for modules:entities - many:many mapping for entities:resources - resources should represent "real" (i.e., physical) resources - one:many mapping for modules:resources - assuming the mapping relationships described above: - given a module be able to easily determine the entity(ies) that exist either completely or partially on that module - given an entity be able to easily determine the module(s) where this entity exists - given a module be able to easily determine what resource(s) exist on that module - given a resource be able to easily determine on what module that resource exists - given an entity be able to easily determine the what resources(s) that entity uses - given a resource be able to easily determine what entity(ies) use that resource - solution to problems related to multiple mib views - some suggested changes to the power supply/environment tables Does this list look about right? Assuming for the most part that it is, I'd like to add my 2 cents. I agree that the many:many mappings are important. To that end, I'll throw out the following food for thought. Consider something like the following in place of the chasPhyResourceTable and the chasLogResourceTable: - a chassis resource group to list all resources in the chassis chasResourceTable chasResourceIndex, chasResourceType, chasResourceCount This is very similar to the chassis resource group that was in the earlier draft with the exception that a count is included similar to the chassis physical location table. - a chassis configuration mapping group chasModuleToEntityTable chasModuleToEntityModule, chasModuleToEntityEntity chasEntityToModuleTable chasEntityToModuleEntity, chasEntityToModuleModule chasModuleToResourceTable chasModuleToResourceModule, chasModuleToResourceResourceType, chasModuleResourceResource chasResourceToModuleTable chasResourceToModuleResourceType, chasResourceToModuleResource, chasResourceToModuleModule -- not an index object chasEntityToResourceTable chasEntityToResourceEntity, chasEntityToResourceResourceType, chasEntityToResourceResource chasResourceToEntityTable chasResourceToEntityResourceType, chasResourceToEntityResource, chasResourceToEntityEntity Each object in these would also be included in the index for the table, except as noted. I know his may be a bit much, but I believe that it supports the many:many mappings and provides for flexible access. The questions are: Do we even want/need this much flexibility? Is there a better way of coming up with it? As for the problem with multiple mib views, personally I would prefer to have a "single entry point" to some entity's mib which allowed me to see what views are available for that particular entity. I would much rather see something along those lines, than have every view for every entity included in the chassis mib. Ed Heiner
- Comments on Chassis Mib eah
- Re: Comments on Chassis Mib David L. Arneson
- Re: Comments on Chassis Mib Mahendra J. Kaycee