HECToR Monthly Report, August 2013
Information on the utilisation, disk allocations, slowdowns and helpdesk statistics can be found in the associated SAFE monthly report.
Dates covered: 08:00 1 August 2013 to 08:00 1 September 2013
Number of hours: 744
1: Availability
Scheduled down time: 3 hours 51 minutes.
Incidents
The following incidents were recorded:
| Severity | Number |
| 1 | 0 |
| 2 | 0 |
| 3 | 16 |
| 4 | 0 |
Of the four severity levels, level 1 corresponds to a contractual failure.
Out of the 17 SEV-3 Incidents, 17 were attributed to node failure events.
Details of severity level 1 incidents
MTBF and Serviceability
| Attribution | Failures | MTBF | UDT | Serviceability |
| Cray | 0 | ∞ | 00:00 | 100% |
| Site | 0 | ∞ | 00:00 | 100% |
| External | 0 | ∞ | 00:00 | 100% |
| Overall | 0 | ∞ | 00:00 | 100% |
- 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
| Error Type | Number |
| MCE bk4/bk5 error (Opteron) | 6 |
| Software error - kernel panic | 6 |
| MCE threshold exceeded error | 2 |
| Compute blade voltage fault | 1 |
| Node downed by Node Health Check | 1 |
| Did not return following SEV-1 incident | 1 |
2: Courses
This information is supplied by NAG Ltd
No training this month
3: Quality Tokens
| Date | Tokens Awarded | Comment | Consortium |
| 22 August 2013 | * * * * (four positive tokens) | Very stable and I approve of the reservation request feature | e10/d37 |
4: Hours Worked
| Group | Days worked | FTEs |
| USL | 77.8 | 4.4 |
| OSG | 77.5 | 4.4 |
5: Performance Metrics
Technology Provision
| Description | TSL | FSL | Value |
| Technology reliability | 85% | 98.5% | 100% |
| Technology throughput | 7000 hours | 8367 hours | 8738 hours |
| Capability job completion rate | 70% | 90% | 98.6% |
| Technology MTBF | 100 hours | 126.4 hours | ∞ |
Note: Technology throughput is calculated: 12*(732-UDT-SDT), where 732 is the annual average number of hours in a month.
Note: MTBF is calculated as 732/number of failures
Service Provision
| Description | TSL | FSL | USL | Value |
| Percentage of non-in-depth queries resolved within one day | 85% | 97% | 99% | 98.7% |
| Number of SP FTEs | 7.3 | 8.0 | 8.7 | 8.8 |
| SP Serviceability | 80% | 99% | 99.5% | 100% |
