| Excerpt |
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Regular maintenance of clusters requires downtime. |
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A maintenance schedule |
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can reduce surprises and not unnecessarily delay required maintenance. |
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See also
- For a snapshot inventory, and the costs to CCB if they were hosted elsewhere, see ChemIT's spreadsheet in <R:\Chem IT\Projects & Tracking>. The data and analysis is in spreadsheet, "Chem IT Support & Services", tab "Alternative server costs".
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Documentation for staff, in support of cluster maintenance
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Specifics, per research group's cluster
(Table started November 2015)
| Group |
|---|
| Maintenance Cycle | Next Scheduled Downtime | Following Scheduled Downtime | Default day and time of day | First warning email sent when | Second warning email sent when | Notes |
|---|---|---|---|---|---|---|
| Scheraga |
| 1 | Jun. 9, 2021 | March |
June
SeptDec
| 11, 2020 | 2rd |
Wednesday of the month |
9:30am | 2 weeks before | 24 hours before |
Need do cluster upgrade, may merge with
Widom-Loring?
March
June
Sept
1st Monday of the month
(if holiday, move to
1st Tuesday)
| Hoffmann | 2 | Jul. 20, 2021 | Apr. 21, 2020 | 3nd Tuesday of the month 9:30am |
| 2 weeks before | 24 hours before |
| Cluster2020 | 3 |
March
June
Sept
May. 4, 2021 | May 5, 2020 | 1st |
Tuesday of the month |
9:30am | 2 weeks before | 24 hours before |
Group meeting at noon on Tuesdays, as of Nov. 2015.
We hope half day will be good enough.
| Eldor ( Freed ) | 3 | May. 13, 2021 | Feb. 13, 2020 | 2nd Thursday of the month 9:30am |
March
June
Sept
3rd Monday of the
month 9am| 2 weeks before | 24 hours before |
Crane Linux Workstations | 3 | May. 19, 2021 | Feb. 19, 2020 | 3rd Wednesday of the month 9:30am |
March
June
Sept
3rd Wednesday of the month
9am
March
June
Sept
1st Thursday of the month
9am
March
June
Sept
2nd Thursday of the
month 9am| 2 weeks before | 24 hours before |
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| Petersen Independent Nodes | Will be moved to Germany |