HECToR Monthly Report, July 2010
Information on the utilisation, disk allocations, slowdowns and helpdesk statistics can be found in the associated SAFE monthly report.
This report relates to the Phase 2a service only. Performance statistics for the non-contractual Phase 2b system can be found here.
Dates covered: 08:00 1 July 2010 to 08:00 1 August 2010
Number of hours: 744
Scheduled down time: 10 hours 04 minutes.
The following incidents were recorded:
Of the four severity levels, level 1 corresponds to a contractual failure.
Out of the 13 SEV-3 Incidents, 13 were attributed to single node failure events.
Details of severity level 1 incidents
|Incident-4016||07/07/2010||Storage Rack Power Supply Tripped||01:46||Cray|
|Incident-4126||23/07/2010||Cabinet Power Supply Failure||01:45||Cray|
MTBF and Serviceability
- Note 1: Serviceability%= 100*(WCT-SDT-UDT)/(WCT-SDT)
- Note 2: MTBF (Mean Time Between Failures) is defined as 732/Number of failures.
Details of single node failures
|RX message header CRC Error||5|
|RX message CRC Error||2|
|RX packet sequence number error||3|
|Software/application related error||2|
|Node admin down||1|
2: CoursesThis information is supplied by NAG Ltd
There were no courses in July.
3: Quality TokensNo tokens were set in July.
4: Hours Worked
5: Performance Metrics
|Technology throughput||7000 hours||8367 hours||8601 hours|
|Capability job completion rate||70%||90%||97.7%|
|Technology MTBF||100 hours||126.4 hours||244|
Note: Technology throughput is calculated: 12*(732-UDT-SDT); 732 - annual average number of hours in a month
Note: MTBF is calculated as 732/number of failures
|Percentage of non-in-depth |
queries resolved within one day
|Number of SP FTEs||7.3||8.0||8.7||9.0|