HECToR Monthly Report, Phase 2A system, May 2011
Information on the utilisation, disk allocations, slowdowns and helpdesk statistics can be found in the associated SAFE monthly report.
Dates covered: 08:00 1 May 2011 to 08:00 1 June 2011
Number of hours: 744
1: Availability
Scheduled down time: 5 hours 22 minutes.
Incidents
The following incidents were recorded:
Severity | Number |
1 | 1 |
2 | 0 |
3 | 4 |
4 | 0 |
In addition there were two full service failures which affected Phase 2a, as already reported in the contractual service report.
Details of severity level 1 incidents
ID | Date | Description | Length | Attribution |
Incident-6356 | 20/05/2011 | Link inactive c6-0c1s5s2l5 c6-0c1s5s1l0 | 00:58 | Cray |
MTBF and Serviceability
Attribution | Failures | MTBF | UDT | Serviceability |
Cray | 1 | 732 | 00:58 | 99.9% |
Site | 0 | ∞ | 00:00 | 100% |
External | 0 | ∞ | 00:00 | 100% |
Other | 0 | ∞ | 00:00 | 100% |
Overall | 1 | 732 | 00:58 | 99.9% |
- 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 | 99.9% |
Technology throughput | 8708 hours |
Capability job completion rate | 100% |
Technology MTBF | 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