The HECToR Service is now closed and has been superceded by ARCHER.

HECToR Monthly Report, November 2013

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 2013 to 08:00 1 December 2013
Number of hours: 720

1: Availability

Scheduled down time: 5 hrs 43 min.

Incidents

The following incidents were recorded:

SeverityNumber
10
20
39
40

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

Out of the 9 SEV-3 Incidents, 9 were attributed to node failure events.

Details of severity level 1 incidents

None this month

MTBF and Serviceability

AttributionFailuresMTBFUDTServiceability
Cray000:00100%
Site000:00100%
External000:00 100%
Overall000:00100%
  • 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
MCE bk0 - bk4 error (Opteron) 3
Node heartbeat fault 1
Software Error - kernel panic (bug 790101/780210) 5

2: Courses

This information is supplied by NAG Ltd

Title of Course Dates Available Places Ordinary Attendees Paying Attendees CSE Staff Total Attending
Introduction to the Unified Model (course given by NCAS-CMS staff) University of Reading 13-14 November 2013 25 25 0 0 0
Debugging, Profiling and Optimising University of Bristol 13-15 November 2013 18 11 0 0 11
Scientific Visualisation NAG Manchester 27 Nov 2013 40 12 0 0 0
Accelerating Applications with CUDA Culham Science Centre 27-29 November 2013 18 12 0 0 12

3: Quality Tokens

Date Tokens Awarded Comment Consortium
18 November 2013 * * * * * (five positive tokens) No comment from user e286

4: Hours Worked

GroupDays workedFTEs
USL 75.8 4.3
OSG 71.0 4.0

5: Performance Metrics

Technology Provision

Description TSL FSL Value
Technology reliability 85% 98.5% 100%
Technology throughput 7000 hours 8367 hours 8716 hours
Capability job completion rate 70% 90% 100%
Technology MTBF 100 hours 126.4 hours

Note: Technology throughput is calculated: 12*(732-UDT-SDT), where 732 is the 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% 98.2%
Number of SP FTEs 7.3 8.0 8.7 8.3
SP Serviceability 80% 99% 99.5% 100%