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Excerpt

Regular maintenance of clusters requires downtime. A maintenance schedule can reduce surprises and not unnecessarily delay required maintenance.


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".
  • 1) CCB High Performance Computers (HPC)

Documentation for staff, in support of cluster maintenance

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Specifics, per research group's cluster

(Table started November 2015)

Group
Months
Maintenance CycleNext Scheduled DowntimeFollowing Scheduled Downtime

Default day and

time of day

First warning

email sent when

Second warning

email sent when
Notes
Scheraga
Next Scheduled downtimeAbruna
1

Jun. 9, 2021

March

June
SeptDec
11, 2020

2rd

1st

Wednesday of the month

9amCollum

March
June
Sept

Dec

1st Monday of the month

(if holiday, move to

1st Tuesday)

9am

9:30am

2 weeks before24 hours before

Need do cluster upgrade, may merge with

Widom-Loring?

Wed. 03/02/2016 at 9:30am

Hoffmann2Jul. 20, 2021Apr. 21, 2020

3nd Tuesday of the month

9:30am

2 weeks before24 hours before
 

Cluster20203
Mon. 03/07/2016 at 9:30amHoffmann

March
June
Sept

Dec2nd

May. 4, 2021


May 5, 2020

1st Tuesday of the month

9am

9:30am

2 weeks before24 hours before
Changed to morningTues. 03/08/2016 at 9:30amLancaster (w/ Crane)

March
June
Sept

Dec3rd Monday

Eldor ( Freed )3May. 13, 2021Feb. 13, 2020

2nd Thursday of the

month

9am

9:30am

2 weeks before24 hours before
 Mon. 03/21/2016 at 9:30am

Lancaster (w/ Crane)

Crane Linux Workstations

3

May. 19, 2021


Feb. 19, 2020
Scheraga

March
June
Sept

Dec

3rd Wednesday of the

month

9am

2 weeks before24 hours before Wed. 03/16/2016 at 9:30am

Widom-Loring

March
June
Sept

Dec1st Thursday of the

month

9am

2 weeks before24 hours before Thur. 03/03/2016 at

9:30am

EldorMarchDec

2nd Thursday of the

month 9am

June
Sept
2 weeks before24 hours before
 Thur. 03/10/2016 at 9:30am

 

...


Petersen Independent Nodes





Will be moved to Germany