HECToR Monthly Report, September 2007
Information on the utilisation, disk allocations, slowdowns and helpdesk statistics can be found in the associated SAFE monthly report.
Dates covered: 08:00 1 September 2007 to 08:00 1 October 2007
Number of hours: 720
1: Availability
System: TDS
Scheduled down time: 52 hours
Incidents
The following incidents were recorded starting from 22 September 2007:
| Severity | Number |
| 1 | 3 |
| 2 | 1 |
| 3 | 0 |
| 4 | 0 |
Of the four severity levels, level 1 corresponds to a contractual failure.
Details of severity level 1 incidents
| ID/Date | Description | Length | Attribution |
| 24/9/2007 | System down due to flooding event still under investigation | 8:12 | Cray |
| 25/9/2007 | A power problem at Appleton Tower adversely affected the SRIF network such that connectivity to/from the system was intermittent and active network connections lost | 1:13 | OSG |
| 28/9/2007 | A critical security issue that required a software patch to be obtained from Cray and be subsequently applied and tested. | 72:00 | Other |
MTBF and Serviceability
| Attribution | Failures | MTBF | UDT | Serviceability |
| Cray | 1 | 732 | 8:12 | 95% |
| Site | 1 | 732 | 1:13 | 99.3% |
| External | 0 | - | 0:00 | 100% |
| Other | 1 | 732 | 72:00 | 56.1% |
| Overall | 3 | 244 | 81:25 | 50.4% |
- Note 1: Serviceability%= 100*(WCT-SDT-UDT)/(WCT-SDT)
- Note 2: WCT (Wall Clock Time) for this calculation is counted starting from 00:00 hours on 22 September 2007, with the total of 216 hours.
- Note 3: MTBF (Mean Time Between Failures) is defined as 732/Number of failures. This formula does not make an allowance for a shorter month.
2: Courses
This information is supplied by NAG Ltd
| Title of Course | Start date | Length (Days) | Place days | HECToR User Days | HECToR Staff Days |
| Getting Ready for HECToR | 19/9/2007 | 1 | 15 | 5 | 8 |
3: Quality tokens
No quality tokens were set by users in the last three months.
4: Hours worked
| Group | Days worked | FTEs |
| USL | 86.6 | 4.9 |
| OSG | 70.7 | 4.0 |
5: Performance metrics
Technology Provision
| Description | TSL | FSL | Value |
| Technology reliability | 85% | 98.50% | 95% |
| Technology throughput | 7000 hours | 8367 hours | N/A |
| Capability job completion rate | 70% | 90% | N/A |
| Technology MTBF | 100 hours | 126.4 hours | 732 |
Service Provision
| Description | TSL | FSL | USL | Value |
| Percentage of non-in-depth queries resolved within one day | 85% | 97% | 99% | 95% |
| Number of SP FTEs | 7.3 | 8.0 | 8.7 | 8.9 |
| SP serviceability | 80% | 99% | 99.5% | 99.3% |
