WIMS> CIM> How to represent SubUnitStatus in CIM?

WIMS> CIM> How to represent SubUnitStatus in CIM?

WIMS> CIM> How to represent SubUnitStatus in CIM?

McDonald, Ira imcdonald at sharplabs.com
Sat Jan 13 15:08:35 EST 2007


Hi Rick,

I actually favor the multiple properties approach.

But this will require some adjustment in the PWG
Semantic Model 2.0 work-in-progress.

Because the WIMS Subunits schema defines the complex
type "SubunitStates" - an array of "SubunitState"
of type "SubunitStateWKV" (e.g., 'Online' and
Transitioning') - used widely in Subunits schema 
and the Alerts schema for notifications and history 
for subunits (i.e., rows in prtAlertTable).

Editorial issue - explosion of multiple status
property definitions in CIM MOF.

Editorial issue - value names - the Subunits schema 
uses them verbatim (e.g., 'AvailableAndIdle' and
'UnavailableAndOnRequest') - I prefer this.

Cheers,
- Ira

Ira McDonald (Musician / Software Architect)
Chair - FSG Open Printing Steering Committee
Blue Roof Music / High North Inc
PO Box 221  Grand Marais, MI  49839
phone: +1-906-494-2434
email: imcdonald at sharplabs.com 
-----Original Message-----
From: owner-wims at pwg.org [mailto:owner-wims at pwg.org]On Behalf Of
Richard_Landau at Dell.com
Sent: Friday, January 12, 2007 11:51 AM
To: Richard_Landau at Dell.com; wims at pwg.org
Subject: RE: WIMS> CIM> How to represent SubUnitStatus in CIM?


Just spoke with Core leadership about this.  The use of separate status
variables seems to be the new direction, rather than the use of arrays of
status enums.  There are several new status variables being added (proposed,
anyway) to EnabledLogicalElement in a new CR.  I think this is a reasonable
directon for us to take.  If someone has a better partitioning of the items
than this traditional one, please elaborate.  

rick




From: owner-wims at pwg.org [mailto:owner-wims at pwg.org] On Behalf Of
Richard_Landau at Dell.com
Sent: Thursday, January 11, 2007 15:52
To: wims at pwg.org
Subject: WIMS> CIM> How to represent SubUnitStatus in CIM?


Ira, regarding our discussion on SubUnitStatus today, I think that there are
(at least) two choices: either a vector of enum values or several separate
variables.  It might not be thoroughly unreasonable to break it into five
variables representing the five sections that were or-ed together in the
first place.  
StatusAvailability      enum 
        0       idle 
        1       on request, unavailable 
        2       standby 
        3       broken, unavailable 
        4       active 
        5       unknown 
        6       busy 
StatusCriticalAlert     Boolean 
StatusNonCriticalAlert  Boolean 
StatusOnline    Boolean 
StatusTransitioning     Boolean 
It's an idea, anyway.  Whaddyathink?  
For comparison, here is the section from the MIB intro, from which I cribbed
the text above.  
   The PrtSubUnitStatusTC is an integer that is the sum of 5 distinct 
   values, Availability, Non-Critical, Critical, On-line, and 
   Transitioning.  These values are: 
   Availability                           value 
           Available and Idle               0       000'b 
           Available and Standby            2       010'b 
           Available and Active             4       100'b 
           Available and Busy               6       110'b 
           Unavailable and OnRequest        1       001'b 
           Unavailable because Broken       3       011'b 
           Unknown                          5       101'b 
   Non-Critical 
           No Non-Critical Alerts           0 
           Non-Critical Alerts              8 
   Critical 
           No Critical Alerts               0 
           Critical Alerts                 16 
   On-Line 
           State is On-Line                 0 
           State is Off-Line               32 
   Transitioning 
           At intended state                0 
           Transitioning to intended state 64 


rick 
---------------------- 
Richard_Landau(at)dell(dot)com, Stds & System Mgt Arch, CTO Office 
+1-512-728-9023, One Dell Way, RR5-3, MS RR5-09, Round Rock, TX 78682 

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