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Infrastructure meetings take place every other Thurs. at 9:00 am Pacific on the BlueJeans infrastructure-meeting channel:




  • Ensure successful use of the current NCSA infrastructure
  • Plan for near- and medium-term activities

Discussion items

Review of last meeting notes
  • updates

  • Reminder - next Thurs. lsst-dev maint. This will complete the decommissioning of the NFS home filesystem.
  • Biil's proposed July day-long outage for hardware refresh. See below.

PDAC StatusGregory Dubois-Felsmann
  • Briefing of PDAC planning efforts at DMLT
Topics for next meeting


Question from Igor:    will the hardware refresh include SSD?

Question from Fabio:    Target rate for external i/o is 3 GB/s.  Latency is currently 110ms.  Bandwidth is 10 Gb/s.  Currently limited by carrier bandwidth, but will going 20Gb/s dedicated ~June this year.  External i/o requirements should be taken into account with the h/w refresh.   Same issues will exist with Chile.

Bill Glick's proposed hardware refresh
I’m trying to schedule an extended maintenance date for LSST’s lab hardware refresh.  This would be a full-day outage of most LSST developer resources at NCSA and would include the following systems:
- lsst-dev01
- lsst-db
- lsst-xfer
- lsst-web (lsst7)
- lsst-dts
- lsst-dbdev environment
- lsst-daq test stand
- lsst-dbb (data backbone) test stand
- lsst-elast (elastic compute) test stand
This outage will be for rack, PDU, and networking upgrades for the LSSTdev environment housed in NCSA 3003.  It probably needs to be a 8a-5p CDT outage.
Questions at this point… 
- How does Thursday, July 20, 2017 look for this outage? (This would be the date of our monthly maintenance.)
- Anything on the calendar that makes this a bad time? 
- Should we consider an alternate time near mid-July for this?
NOTE: We are still waiting on orders to be processed, a new network aggregation router to be installed, and electrical work — all of which is in process and unclear when will be completed. So this date would be tentative, but would also give us a target date for getting things ready.
Bill Glick
Sr System Engineer - NCSA - University of Illinois at Urbana-Champaign

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