HECToR Monthly Report, Phase 2B system, November 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 November 2010 to 08:00 1 December 2010
Number of hours: 720

1: Availability

Scheduled down time: 11 hours 10 minutes.

Incidents

The following incidents were recorded:

SeverityNumber
13
20
350
40

Details of severity level 1 incidents

ID Date Description Length Attribution
Incident-4961 07/11/2010 HT lockup - HSN failure 01:12 Cray
Incident-4981 11/11/2010 HT lockup event 01:23 Cray
Incident-5036 12/11/2010 Deadlock Timeout/HT Lockup Event 02:39 Cray

MTBF and Serviceability

AttributionFailuresMTBFUDTServiceability
Cray324405:14:0099.3%
Site000:00:00100%
External000:00:00100%
Other000:00:00100%
Overall324405:14:0099.3%
  • 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 99.3%
Technology throughput 8587 hours
Capability job completion rate 100%
Technology MTBF 244

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