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:

SeverityNumber
16
20
319
40

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

AttributionFailuresMTBFUDTServiceability
Cray612221:30:0097.1%
Site000:00:00100%
External000:00:00100%
Other000:00:00100%
Overall612221:30:0097.1%
  • 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