The HECToR Service is now closed and has been superceded by ARCHER.

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:

SeverityNumber
14
20
318
40

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

AttributionFailuresMTBFUDTServiceability
Cray324413:26:0098.1%
Site000:00:00100%
External173230:56:00100%
Other000:00:00100%
Overall418344:22:0093.7%
  • 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 Ltd
Title 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

GroupDays workedFTEs
USL76.74.3
OSG87.2 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%