HECToR Monthly Report, August 2008

Information on the utilisation, disk allocations, slowdowns and helpdesk statistics can be found in the associated SAFE monthly report.

Dates covered: 08:00 1 August 2008 to 08:00 1 September 2008
Number of hours: 744

1: Availability

Scheduled down time: 17 hours 37 minutes.

Incidents

The following incidents were recorded:

SeverityNumber
12
20
338
40

Of the four severity levels, level 1 corresponds to a contractual failure.

Details of severity level 1 incidents

ID Date Description Length Attribution
Incident-354 12/08/2008 Link inactive error 01:43 Cray
Incident-369 21/08/2008 WWW/helpdesk unavailable 16:20 Site

MTBF and Serviceability

AttributionFailuresMTBFUDTServiceability
Cray173201:43:0099.8%
Site1732 16:20:0097.8%
External0 ~ 00:00:00100%
Other0 ~ 00:00:00100%
Overall236618:03:0097.5%
  • Note 1: Serviceability%= 100*(WCT-SDT-UDT)/(WCT-SDT)
  • Note 2: MTBF (Mean Time Between Failures) is defined as 732/Number of failures.

2: Courses

This information is supplied by NAG Ltd

Title of Course Dates Available places Total attending HECToR Users HECToR Staff
4-5 August 2008 Programming for the vector platform 12 7 3 4
6 August 2008 Introduction to HECToR 20 0 0 0
26-27 August 2008 Portability and Maintainability 12 0 0 0
28 August 2008 HPC data management 12 0 0 0
29 August 2008 Code surgery 12 0 0 0

3: Quality tokens

None set this month

4: Hours worked

GroupDays workedFTEs
USL73.6 4.2
OSG 71.0 4.0

5: Performance metrics

Technology Provision

Description TSL FSL Value
Technology reliability 85% 98.5% 99.8%
Technology throughput 7000 hours 8367 hours 8356 hours
Capability job completion rate 70% 90% 100%
Technology MTBF 100 hours 126.4 hours 366 hours

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

Service Provision

Description TSL FSL USL Value
Percentage of non-in-depth
queries resolved within one day
85% 97% 99% 98%
Number of SP FTEs 7.3 8.0 8.7 8.2
SP serviceability 80% 99% 99.5% 97.8%