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:
Severity | Number |
1 | 2 |
2 | 9 |
3 | 27 |
4 | 0 |
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
Attribution | Failures | MTBF | UDT | Serviceability |
Cray | 2 | 366 | 04:57:00 | 99.3% |
Site | 0 | ~ | 00:00:00 | 100% |
External | 0 | ~ | 00:00:00 | 100% |
Other | 0 | ~ | 00:00:00 | 100% |
Overall | 2 | 366 | 04:57:00 | 99.3% |
- 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
Group | Days worked | FTEs |
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% |