HECToR Monthly Report, Phase 2B system, July 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 July 2010 to 08:00 1 August 2010
Number of hours: 744
1: Availability
Scheduled down time: 11 hours 24 minutes.
Incidents
The following incidents were recorded:
| Severity | Number |
| 1 | 6 |
| 2 | 0 |
| 3 | 19 |
| 4 | 0 |
Details of severity level 1 incidents
| ID | Date | Description | Length | Attribution |
| Incident-4021 | 07/07/2010 | Maintenance session over-run | 09:04 | Cray |
| Incident-4031 | 08/07/2010 | Shutdown due to Lustre problem | 06:12 | Cray |
| Incident-4066 | 17/07/2010 | High Speed Network failure | 02:09 | Cray |
| Incident-4111 | 20/07/2010 | Filesystem mount error | 01:15 | Cray |
| Incident-4176 | 28/07/2010 | OSS failure | 01:38 | Cray |
| Incident-4191 | 30/07/2010 | Link Inactive | 01:12 | Cray |
MTBF and Serviceability
| Attribution | Failures | MTBF | UDT | Serviceability |
| Cray | 6 | 122 | 21:30:00 | 97.1% |
| Site | 0 | ∞ | 00:00:00 | 100% |
| External | 0 | ∞ | 00:00:00 | 100% |
| Other | 0 | ∞ | 00:00:00 | 100% |
| Overall | 6 | 122 | 21:30:00 | 97.1% |
- Note 1: Serviceability%= 100*(WCT-SDT-UDT)/(WCT-SDT)
- Note 2: MTBF (Mean Time Between Failures) is defined as 732/Number of failures.
2: Performance Statistics
Technology Provision
| Description | Value |
| Technology reliability | 97.1% |
| Technology throughput | 8647 hours |
| Capability job completion rate | 100% |
| Technology MTBF | 122 |
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
