HECToR Monthly Report, October 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 October 2007 to 08:00 1 November 2007
Number of hours: 744
1: Availability
Scheduled down time: 7 hours 28 minutes
Incidents
The following incidents were recorded:
| Severity | Number |
| 1 | 5 |
| 2 | 0 |
| 3 | 27 |
| 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 |
| Incident-6 | 02/10/2007 | Module failure affecting 4 nodes caused flooding | 8:40 | Cray |
| Incident-7 | 04/10/2007 | Link failure caused total interconnect collapse | 1:41 | Cray |
| Incident-10 | 08/10/2007 | Blade failure caused seastar network collapse | 1:39 | Cray |
| Incident-38 | 28/10/2007 | Progressive failure of system | 5:50 | Cray |
| Incident-39 | 29/10/2007 | Progressive failure of system | 1:22 | Cray |
MTBF and Serviceability
| Attribution | Failures | MTBF | UDT | Serviceability |
| Cray | 5 | 146 | 19:12 | 97.4% |
| Site | 0 | - | 0:00 | 100% |
| External | 0 | - | 0:00 | 100% |
| Other | 0 | - | 0:00 | 100% |
| Overall | 5 | 146 | 19:12 | 97.4% |
- Note 1: Serviceability%= 100*(WCT-SDT-UDT)/(WCT-SDT)
- Note 2: MTBF (Mean Time Between Failures) is defined as 732/Number of failures.
2: Courses
This information is supplied by NAG Ltd
| Title of Course | Dates | Length (Days) | Place days | HECToR User Days | HECToR Staff Days |
| Introduction to HECToR | 30/10/07 | 1 | 20 | 2 | 0 |
| Porting Codes to HECToR | 31/10/07 | 1 | 12 | 2 | 0 |
| Techniques for Achieving Scalability | 1/11/07 - 2/11/07 | 2 | 24 | 0 | 0 |
3: Quality tokens
| Date | Value | Comment |
| Oct 15, 2007 6:26:07 PM | * * * * |
4: Hours worked
Note: Mr Mike Brown (OSG) has reported in total over 246 hours in October 2007.
| Group | Days worked | FTEs |
| USL | 87.11 | 4.91 |
| OSG | 66.57 | 3.76 |
5: Performance metrics
Technology Provision
| Description | TSL | FSL | Value |
| Technology reliability | 85% | 98.50% | 97.4% |
| Technology throughput | 7000 hours | 8367 hours | 8464 hours |
| Capability job completion rate | 70% | 90% | 100% |
| Technology MTBF | 100 hours | 126.4 hours | 146 hours |
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% |
| Number of SP FTEs | 7.3 | 8.0 | 8.7 | 8.7 |
| SP serviceability | 80% | 99% | 99.5% | 100% |
