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Upcoming to do's for Hoffmann researchers, as of 11/27/13:

(1)

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As soon as possible, ensure researchers' user data on Sol can be completely deleted.

• We will be deleting all the home directories. (They were originally copied there as a testing convenience during our test phase.)
• We do this to enable a clean import of researchers' current production home directories from Helios.
• Lulu has advised researchers of this from before the Thanksgiving break, so hopefully no surprises.

Bottom line: If there are any files on Sol which researchers cannot afford to lose (hopefully not- it was in test mode, and it's not being backed up!), researchers must move that data to Helios right away (deadline?).

2)

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On a predetermined date, researchers will

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stop having access to Sol until it is again ready for testing.

• Sol will need to be turned off and worked on by us. (Approximate duration?) Therefore, it will be off-line to researcher.
• Ad hoc permission to select researches (Prasad?) will be granted so they may install and test their software.
• Tasks for us to do:
  • Get the server's versioning hard disk recognized within the new head node.
  • Lulu to install the Intel compiler in the /software/ directory, with the proper licensing.
  • Your group (Prasad?) to install the Materials Studio software in the /data/ Hoffmann/bin/ directory. If Prasad is not available to do this, let's discuss our options- thank you.
    

3)

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On a predetermined date, researchers will be asked to test select software on Sol.

• Changes to where the Intel compiler and Materials Studio reside (to facilitated debugging and support) must be confirmed to work for researchers.
• Again we are testing on Sol. Thus, the only production work should still be on Helios, not Sol.

REMINDER: Researchers must again ensure their user data on Sol can be completely deleted.

4)

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On a predetermined date, researchers will again

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stop having access to Sol until it is ready for production.

•  During this time we will sync researchers' home directories from Helios
  QUESTION for Lulu and Michael: Is this really better than giving each researcher a bare home directory and asking them to move only the data from Helios which they need?

5) On a predetermined date, researchers must plan for 1-2 days of downtime for Helios, after which Sol will be

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available and in full production.

• We obviously must coordinate this cut-over to ensure no loss of researcher's production data and to minimize the inconvenience of the downtime.
• With Sol in production, we can:
  • add the older compute nodes from Helios, making Sol more and more powerful.
  • once Sol is confirmed "good", Helios's head node can be added as a compute node to Sol.

Thank you!  -ChemIT

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