HECToR Monthly Report, November 2009
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 2009 to 08:00 30 November 2009
Number of hours: 720
1: Availability
Scheduled down time: 12 hours 43 minutes.
Incidents
The following incidents were recorded:
Severity | Number |
1 | 4 |
2 | 0 |
3 | 18 |
4 | 0 |
Of the four severity levels, level 1 corresponds to a contractual failure.
Out of the 18 SEV-3 Incidents, 18 were attributed to single node failures.
Details of severity level 1 incidents
ID | Date | Description | Length | Attribution |
Incident-2502 | 06/11/2009 | Link inactive failure | 01:12 | Cray |
Incident-2532 | 15/11/2009 | Close for security vulnerability | 30:56 | External |
Incident-2547 | 19/11/2009 | Reload after PSU failure on module c16-2c2s0 | 02:13 | Cray |
Incident-2572 | 22/11/2009 | Link inactive failure | 10:01 | Cray |
MTBF and Serviceability
Attribution | Failures | MTBF | UDT | Serviceability |
Cray | 3 | 244 | 13:26:00 | 98.1% |
Site | 0 | ∞ | 00:00:00 | 100% |
External | 1 | 732 | 30:56:00 | 100% |
Other | 0 | ∞ | 00:00:00 | 100% |
Overall | 4 | 183 | 44:22:00 | 93.7% |
- Note 1: Serviceability%= 100*(WCT-SDT-UDT)/(WCT-SDT)
- Note 2: MTBF (Mean Time Between Failures) is defined as 732/Number of failures.
Details of single node failures
Error Type | Number |
UME bk4 (Dimms) | 2 |
UME bk 0-4 (Internal Opteron) | 3 |
RX message header CRC Error | 7 |
RX packet sequence number error | 2 |
Heartbeat fault | 2 |
Out of memory error | 1 |
Suspected software error | 1 |
2: Courses
This information is supplied by NAG LtdTitle of Course | Dates | Available Places | Ordinary Attendees | Paying Attendees | CSE Staff | Total Attending |
Quad Core Training, NAG Manchester | 9 - 10 November 2009 | 14 | 11 | 0 | 1 | 12 |
DLPOLY, NAG Manchester | 11 November 2009 | 20 | 18 | 0 | 1 | 19 |
3: Quality Tokens
Date | Tokens Awarded | Comment | Consortium |
12-Nov-2009 18:39:45 | * * * * | Positive tokens, no user comments | e82 |
21-Nov-2009 12:18:27 | * * * | Positive tokens, no user comments | e05 |
4: Hours Worked
Group | Days worked | FTEs |
USL | 76.7 | 4.3 |
OSG | 87.2 | 4.9 |
5: Performance Metrics
Technology Provision
Description | TSL | FSL | Value |
Technology reliability | 85% | 98.5% | 98.1% |
Technology throughput | 7000 hours | 8367 hours | 8099 hours |
Capability job completion rate | 70% | 90% | 100 % |
Technology MTBF | 100 hours | 126.4 hours | 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
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 | 9.2 |
SP Serviceability | 80% | 99% | 99.5% | 100% |