Hi Jon,

I can't be there sorry - I originally thought it would be fine but I need to stay home for family reasons (babysitting my own kid for a change).

I'd like to see what comes out of the discussion regarding the time info in the record.

Are you opening up the question of Duration v's Snapshot again?

I can make some comments about Measurement time and creation time.
At least I can find if I understand things in the same was as others.

Measurement time - defines the time at which the storage usage was actually measured (system probed or logs analysed)

Measurement time may not fit too well with Duration.
If the service (probe/daemon) at the site needs to query several times and later forms an average (detailing the duration as the span of these probes) then we have an issue with measurement time.

The snapshot idea would in this case may look a bit simpler.

Creation time - I would say is when the UR is published (or formed from n measurements)?

If we have a system which can publish a record numerous times then the creation time would become relevant.
Say if you see a problem with a record for a specific time duration and the site re-calculates it.
The second UR could have the same measurement time but a different Creation time?

I'm really sorry i can't make it

cheers
johnk

On 07/09/2012 03:11 PM, Jon Kerr Nilsen wrote:

Hi all,

Just as a timely reminder of the phone meeting tomorrow 15:00 CEST, here's the agenda:

- Discuss the updates to StAR after the public comment period

- Requirements and use cases

- AOB

For the first point, there were three new properties to be defined, Site, ResourceCapicityAllocated and TimeDuration (that should replace ValidDuration). I've started defining the new properties under https://forge.ogf.org/sf/wiki/do/viewPage/projects.ur-wg/wiki/StARUpdates, but I would very much appreciate input before I take the changes to EMI.

For the second point, one of our not completely closed requirements is about timing (start time, end time, measure time, creation time). Andrea and I have had some discussions with a rather high TimeDuration, and it has become clear that we need some input on what time related properties to use, both in StAR and UR 2.0. So, if there is time left we should have a discussion on time properties.

Hear you to morrow (if you have time)!

cheers,

Jon

On 29. juni 2012, at 14:43, Andrea Cristofori wrote:

Dear all,

We should resume, after last OGF, the usual phone meetings. What do you think if we move our next meeting to the 10th of June? Usual time: 15:00 CEST.

Regards,
Andrea

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Andrea Cristofori
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Tel. : +39-051-6092920
Skype: andrea-cnaf

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