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(1) As soon as possible, ensure researchers' temporary, test user data on Sol can be completely deleted.

• We ChemIT will be deleting the content within everyone's test home directories on Sol. (They were originally copied there as a testing convenience during our test phase.)
  • We do this deletion before the final copy to ensure a clean import of researchers' current production home directories from Helios.

• • Lulu advised researchers of this step 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 is not being backed up!), researchers must move that data to Helios right away.

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Sol will still be unavailable to researchers. Thus, during this period when Helios, too, is turned off (to allow for its final set up), both Sol and Helios will be off-line to researchers.

We obviously must coordinate this cut-over date to ensure no loss of researcher's production data and to minimize the inconvenience of the downtime

• Tasks for ChemIT to do:
  • Copy
  .During this time, ChemIT will copy
  • researchers' production home directory data from Helios to Sol.
  • Add the older compute nodes from Helios, making Sol more powerful.
  • Testing by ChemIT.

4) About 1-2 days after Helios's shut down (3, above), Sol will be again be available and in production capability to researchers.

During this transitional period, ChemIT will:

• Add the older compute nodes from Helios, making Sol more and more powerful.

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After Sol is in production, researchers must confirm all is working as expected. And they should improve their software installations.

Tasks for ChemIT:

• Once Hoffmann researchers confirme confirm Sol is "good" (that is, there is no need to "roll back" to using Helios due to some failure), Helios's head node can be added as a compute node to Sol.

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• Hoffmann group members should install their shared group used software in the /data/ Hoffmann/bin/ directory. Including:
  • Materials Studio software. (Who? If Prasad is not available to do this, let's discuss your options- thank you.)
  • vasp
  • gulp
  • etc.

Thank you!  -ChemIT

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