[UR-WG] Actions for next phone meeting on 21.02.2012, 15:00 CET
john.gordon at stfc.ac.uk
john.gordon at stfc.ac.uk
Tue Feb 21 11:29:27 EST 2012
The risk implied by your 'careful' is why I prefer both quantities to be in the same UR. Then each observation is unique and one needn't mess around trying to reconcile time differences and their implications.
John
> -----Original Message-----
> From: ur-wg-bounces at ogf.org [mailto:ur-wg-bounces at ogf.org] On Behalf Of
> Ralph Mueller-Pfefferkorn
> Sent: 21 February 2012 13:16
> Cc: ur-wg at ogf.org
> Subject: Re: [UR-WG] Actions for next phone meeting on 21.02.2012,
> 15:00 CET
>
> Hi,
>
> Mike Jones via mobile wrote on 21.02.2012 11:55:
> > To follow up on John's WLCG usecase: I agree that VO space allocated
> > over a period of time _is_ a usage. BUT VO allocation at any instant
> is
> > not. That said, the dynamics of any allocation/usage needs to be
> > recorded to be able to answer the question "over period X did the
> > allocation always satisfy: instantaneous_storage( used+available) > N
> > (dimension:bytes)?"
> A possible implementation could be to have records for the usage and
> records stating the allocated space such that it is possible to do such
> a comparison.
> E.g. (in the StAR scheme)
>
> Allocation:
> ...
> <ur:StorageSystem>host.example.org</ur:StorageSystem>
> <ur:StorageShare>pool-003</ur:StorageShare>
> <ur:StorageClass>allocated</ur:StorageClass>
> <ur:StorageResourceCapacityUsed>14728</ur:StorageResourceCapacityUsed>
> ...
>
> Usage:
> ...
> <ur:StorageSystem>host.example.org</ur:StorageSystem>
> <ur:StorageShare>pool-003</ur:StorageShare>
> <ur:StorageResourceCapacityUsed>1728</ur:StorageResourceCapacityUsed>
> ...
>
> This would mean that the analysis of the records has to be careful in
> not mixing the different meanings of the records.
>
> Cheers,
> Ralph
>
>
> > John, does that last clause satisfy WLCG?
> >
> > Mike
> > --
> > Sent from my Android phone with K-9 Mail. Please excuse my brevity.
> >
> > john.gordon at stfc.ac.uk wrote:
> >
> > I’ll be in Taiwan next week UTC+8 so I may or may not attend.
> > Depends if anything official is happening that evening and if I
> can
> > stay awake and if Skype works.
> >
> > I’ll add the WLCG storage use case to the wiki before then. I
> must
> > stress that this is important to WLCG and that we consider space
> > allocated to a VO as ‘usage’ as it is not available to others and
> is
> > to be recorded just like space occupied by files. i.e. Not
> > monitoring any more than recording the existence of files in
> > monitoring.
> >
> > John
> >
> > *From:*ur-wg-bounces at ogf.org [mailto:ur-wg-bounces at ogf.org] *On
> > Behalf Of *Andrea Cristofori
> > *Sent:* 21 February 2012 08:15
> > *To:* Jon Kerr Nilsen
> > *Cc:* ur-wg at ogf.org
> > *Subject:* Re: [UR-WG] Actions for next phone meeting on
> 21.02.2012,
> > 15:00 CET
> >
> >
> > Dear all,
> >
> > Sorry for the short notice but neither I or Jon can make it to
> today
> > phone conference. We would like then to postpone it to next week
> > (same day, same time).
> > About today actions Jon already published the document and I got
> an
> > answer for the slot at OGF:
> >
> > http://www.ogf.org/gf/event_schedule/index.php?id=2413
> >
> > Again apologies.
> >
> > Cheers,
> > Andrea
> >
> >
> >
> >
> > On 02/21/2012 09:08 AM, Jon Kerr Nilsen wrote:
> >
> > Hi all,
> >
> > As John AK just reminded me, the next phone meeting is today.
> We'll
> > go through the actions mentioned below and possibly make some new
> > ones. Just to try out something new, I suggest we try the Skype
> > conference room in Lund (which is starting to get stable now). So
> > you can call in to
> >
> > Place: Skype
> > Skype contact: lund.room.1
> > Phone bridge: +46462884608
> >
> > cheers,
> >
> > Jon
> >
> > On 7. feb. 2012, at 17:32, Andrea Cristofori wrote:
> >
> >
> >
> > Dear all,
> >
> > Most of the phone conference has been focused on the comments on
> the
> > use cases provided by John AK. We commented directly inline on
> the
> > wiki. Feel free to add more Use cases if not present. We will
> > comment them during next phone conference. We also agreed in
> asking
> > for a second time slot during OGF (if possible the same day) and
> > divide the agenda in two parts and JKN will look for information
> on
> > how to make the document he circulated the 25th public. The
> actions
> > for next meeting are the following:
> >
> > - AC: Ask for another session the same day at OGF and update the
> > agenda on OGF website
> > - JKN: make public the document
> > - All: write some examples for the different use cases (minima,
> > grid, local, etc.) (Ralph local, JAK Grid/dCache)
> >
> >
> >
> > Especially for John Gordon: can you please comment on those two
> use
> > cases:
> >
> > 1. As a project I would like to be able to view the used and
> unused
> > storage space that I have on a storage resource.
> > - Thus I can see how much headroom I have.
> >
> > All: seems to be more monitoring Comments from John are required
> >
> > 1. As a project I would like to be able to view the requested
> > storage I have on a specific resource and the
> allocated/reserved
> > resources I have on that resource.
> > - Thus I can see I asked for 100TB and I currently have only
> > 80TB at my disposal (of which i am using 50TB).
> >
> > All: seems to be more monitoring Comments from John are required
> >
> >
> > Cheers
> > Andrea
> >
> > --
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> >
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> >
> >
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> >
> >
> > --
> >
> > Andrea Cristofori
> >
> > INFN-CNAF
> >
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> >
> > 40127 Bologna
> >
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> >
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> >
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> >
> >
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