HECToR Monthly Report, June 2010
Information on the utilisation, disk allocations, slowdowns and helpdesk statistics can be found in the associated SAFE monthly report.
Dates covered: 08:00 1 June 2010 to 08:00 1 July 2010
Number of hours: 744
1: Availability
Scheduled down time: 7 hours 22 minutes.
Incidents
The following incidents were recorded:
| Severity | Number |
| 1 | 1 |
| 2 | 5 |
| 3 | 26 |
| 4 | 0 |
Of the four severity levels, level 1 corresponds to a contractual failure.
Out of the 26 SEV-3 Incidents, 26 were attributed to single node failure events. Three of the 5 SEV-2 Incidents were attributed to node fails where multiple nodes were impacted.
Details of severity level 1 incidents
| ID | Date | Description | Length | Attribution |
| Incident-3722 | 15/06/2010 | Cabinet emergency power down due to power supply failure | 04:58 | Cray |
MTBF and Serviceability
| Attribution | Failures | MTBF | UDT | Serviceability |
| Cray | 1 | 732 | 04:58:00 | 99.3% |
| Site | 0 | ∞ | 00:00:00 | 100% |
| External | 0 | ∞ | 00:00:00 | 100% |
| Other | 0 | ∞ | 00:00:00 | 100% |
| Overall | 1 | 732 | 04:58:00 | 99.3% |
- 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 |
| RX message header CRC Error | 12 |
| RX message CRC Error | 6 |
| RX packet sequence number error | 2 |
| MCA error (internal Opteron cache error) | 2 |
| UME bk4 (bk0 DIMMS) | 1 |
| Software/application related error | 6 |
2: Courses
This information is supplied by NAG LtdThere were no courses held in June.
3: Quality Tokens
| Date | Tokens Awarded | Comment | Consortium |
| 14-June-2010 18:49:10 | * * * * * | Positive feedback. No Comment Supplied | x01 |
| 14-June-2010 12:31:59 | • • • | I have been waiting for a response from my query Q90696 for six days and haven't heard anything. This is holding my work up | n02 |
4: Hours Worked
| Group | Days worked | FTEs |
| USL | 101.7 | 5.7 |
| OSG | 55.0 | 5.0 |
5: Performance Metrics
Technology Provision
| Description | TSL | FSL | Value |
| Technology reliability | 85% | 98.5% | 99.3% |
| Technology throughput | 7000 hours | 8367 hours | 8636 hours |
| Capability job completion rate | 70% | 90% | 100% |
| Technology MTBF | 100 hours | 126.4 hours | 732 |
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
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 | 10.7 |
| SP Serviceability | 80% | 99% | 99.5% | 100% |
