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Summary information for Hoffmann researchers, as of 12/11/13:

Helios and Sol and Helios will be unavailable to researchers between Monday, Jan. 6th at 9am and approximately Thursday, Jan 9th, at noon.

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• After the break, ChemIT will be deleting the content within everyone's test home directories on Sol. (Those directories 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.
• During the winter break, Sol's backup is...?
  • QUESTION for Roald: What backup will Sol have during the winter break, and beyond? Versioning? EZ-Backup? Both?

Bottom line: If there are any files on Sol which researchers cannot afford to lose, researchers must move that data to Helios (or elsewhere) before Sol is turned off.

QUESTION: What backup will Sol have during the winter break? Versioning? EZ-Backup? Both?

2) Monday, Jan. 6th at 9am: Helios AND Sol

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being turned off to researchers

Researchers mus know that:

• ALL jobs must cease by then, or they will be turned off by ChemIT.
• Also, there must be no remaining research data on Sol.

3) Thursday, Jan 9th, at noon: Expect Sol available to researchers.

• At this point, Sol will be up in full production and open to all researchers, with some or all of Helios's compute nodes attached.

3) On a predetermined date, researchers must plan for 1-2 days of downtime for Helios (and before Sol is available).

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• Sol

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• .

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Tasks for ChemIT to do:

• Copy researchers' production home directory data from Helios to Sol.
• Move Helios's compute nodes into Sol's rack and reconnect all networking and power.
  • This allows us to add Add the older compute nodes from Helios, making Sol more powerful.
• Testing by ChemIT.

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  • • Coordinate with Huayun (Deng) for initial testing, perhaps sometime Wednesday.

  3) Thursday, Jan 9th, at noon: Expect Sol available to researchers.

  • At this point, Sol will be

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  • up in full production and open to all researchers, with some or all of Helios's compute nodes attached.

  The Hoffmann group is encouraged to improve their software installations in order to create a more robust environment and to improve support outcomes.

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  • Once Hoffmann researchers confirm Sol is "good", Helios's head node can be added as a compute node to Sol.

  Thank you !  -ChemIT

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  Older notes:

  Next steps

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