HECToR Monthly Report, May 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 May 2008 to 08:00 1 June 2008
Number of hours: 744

1: Availability

Scheduled down time: 14 hours 28 minutes

Incidents

The following incidents were recorded:

SeverityNumber
12
29
327
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-231 18/05/2008 Voltage fault on module takes out HSN 03:10 Cray
Incident-237 20/05/2008 Full Service Failure - DETAILS AWAITED 01:47 Cray

MTBF and Serviceability

AttributionFailuresMTBFUDTServiceability
Cray236604:57:0099.3%
Site0 ~ 00:00:00100%
External0 ~ 00:00:00100%
Other0 ~ 00:00:00100%
Overall236604:57:0099.3%
  • Note 1: Serviceability%= 100*(WCT-SDT-UDT)/(WCT-SDT)
  • Note 2: MTBF (Mean Time Between Failures) is defined as 732/Number of failures.

2: Courses

This information is supplied by NAG Ltd

Title of Course Dates Available places Total attending HECToR Users HECToR Staff
12 May 2008 Introduction to HECToR 20 5 3 3
14-15 May 2008 Tools and Techniques for Optimising Parallel Codes 12 6 5 3
16 May 2008 Testing and Benchmarking 12 0 0 0
21-22 May 2008 Testing and Benchmarking 12 4 4 3

3: Quality tokens

May 8, 2008 3:08:46 PM Dr Charles Laughton x Seems to be a bit unreliable at the moment...

4: Hours worked

GroupDays workedFTEs
USL 74.0 4.1
OSG 70.5 4.0

5: Performance metrics

Technology Provision

Description TSL FSL Value
Technology reliability 85% 98.5% 99.3%
Technology throughput 7000 hours 8367 hours 8551 hours
Capability job completion rate 70% 90% 97.9%
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% 100%
Number of SP FTEs 7.3 8.0 8.7 8.1
SP serviceability 80% 99% 99.5% 100%