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:

SeverityNumber
11
20
34
40

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

AttributionFailuresMTBFUDTServiceability
Cray1 732 00:5899.9%
Site000:00100%
External000:00100%
Other000:00100%
Overall1 732 00:5899.9%
  • 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