| Excerpt |
|---|
Regular maintenance of clusters requires downtime. |
...
A maintenance schedule |
...
can reduce surprises and not unnecessarily delay required maintenance. |
Our maintenance operating steps:
There are two e-mails sent before the maintenance:
- One email will be sent to group users at two weeks before the maintenance down time. If there is any problem with the date and time, the group users should contact group IT representative. Then group IT representative should contact and discuss with us about the new picked data and time.
- The second email will be sent to all group users 24 hours before.
There are one e-mails sent before the maintenance deadline:
- one email will be sent to all group users about the completion of the work or extension of the downtime will be posted.
Created November 2015
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 | Maintenance Cycle | Next Scheduled Downtime | Following Scheduled Downtime |
|---|
Default day and time of day |
|---|
March
June
Sept
1st Wednesday of the month
9am
Need do cluster upgrade, may merge with
Widom-Loring?
March
June
Sept
1st Monday of the month
(if holiday, move to
1st Tuesday)
9am
March
June
Sept
2nd Tuesday of the month
Noon
Group meeting at noon on Tuesdays, as of Nov. 2015.
We hope half day will be good enough.
March
June
Sept
3rd Tuesday of the
month 9am
March
June
Sept
3rd Thursday of the month
9am
March
June
Sept
1st Thursday of the month
9am
March
June
Sept
First warning email sent when | Second warning email sent when | Notes | |||||
|---|---|---|---|---|---|---|---|
| Scheraga | 1 | Jun. 9, 2021 | March 11, 2020 | 2rd Wednesday of the month 9:30am | 2 weeks before | 24 hours before | |
| Hoffmann | 2 | Jul. 20, 2021 | Apr. 21, 2020 | 3nd Tuesday of the month 9:30am | 2 weeks before | 24 hours before | |
| Cluster2020 | 3 | May. 4, 2021 | May 5, 2020 | 1st Tuesday of the month 9:30am | 2 weeks before | 24 hours before | |
| Eldor ( Freed ) | 3 | May. 13, 2021 | Feb. 13, 2020 | 2nd Thursday of the month 9:30am | 2 weeks before | 24 hours before | |
Crane Linux Workstations | 3 | May. 19, 2021 | Feb. 19, 2020 | 3rd Wednesday of the month 9:30am | 2 weeks before | 24 hours before | |
| Petersen Independent Nodes | Will be moved to Germany |
2nd Thursday of the
month 9am