Re: [Xen-cim] RecordedSettings questions

[Jim Fehlig <jfehlig@xxxxxxxxxx>]

Szymanski, Lukasz K wrote:
> Hello -
>
> I have been thinking about the whole RecordedSetting approach and came 
> up with the following.  I think there should be 4 additional 
> associations: XenDiskSettingRecordedSetting, 
> XenNetworkPortRecordedSetting, XenMemoryRecordedSetting, and 
> XenComputerSystemRecordedSetting.
> This is what I believe is the mof file for XenDiskSettingRecordedSetting
>
> // *******************************************************************
> // Associations
> // *******************************************************************
>
> // ==================================================================
> // Xen_DiskSettingDataRecodedSetting
> // ==================================================================
> [Association,
>  Provider ("cmpi:Xen_DiskSettingDataRecodedSetting"),
>  Description (
>         "A class derived from CIM_RecordedSettings to represent "
>         "the association of a current and/or recorded Xen_Disk setting 
> of "
>         "a virtualized disk device in a Xen domain.
>
> class Xen_DiskSettingDataRecodedSetting : CIM_RecordedSetting
> {
>    [Override("CurrentSetting")]
>    Xen_DiskSettingData REF CurrentSetting;
>
>    [Override("RecordedSetting")]
>    Xen_DiskSettingData REF RecordedSetting;
> };
I think the description should be something like "A class derived from 
CIM_RecordedSetting which reflects the relationship between the recorded 
and current settings data for a virtualized disk device in a Xen 
domain."  This class provides the association between recorded and 
current settings data objects.
> I believe the accompanying C file would be similar to the 
> Xen_HostedDisk.c file.
> This same pattern could be applied to the other Xen_*RecordedSetting 
> files.
> Jim mentioned something on the call about the shim having to be 
> tweaked so it exposes the RecordedSetting stuff.  Can you point me to 
> where that is?
xm.c contains the private function get_defined_domain() which returns an 
xm_config structure populated with settings found in the domain conf 
file.  It could be used (perhaps with some refactoring of the code) as a 
source for recorded settings.
> What are your thoughts here?  What else needs to be done?
Your approach seems fine.  However, keep in mind that we have not yet 
implemented the actual instantiation of 'recorded' 
CIM_ResourceAllocationSettingData instances.  At this time we are only 
producing the 'current' instances.  So I think the first step would be 
to produce the recorded settings, followed by implementing your 
suggested associations to tie the two together.
Jim


_______________________________________________
Xen-cim mailing list
Xen-cim@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-cim