HECToR Monthly Report, October 2011
Information on the utilisation, disk allocations, slowdowns and helpdesk statistics can be found in the associated SAFE monthly report.
Dates covered: 08:00 1 October 2011 to 08:00 1 November 2011
Number of hours: 720
Scheduled down time: 14 hours 4 minutes.
The following incidents were recorded:
Of the four severity levels, level 1 corresponds to a contractual failure.
Out of the 10 SEV-3 Incidents, 10 were attributed to node failure events. Two of the instances were nodes being admin downed by systems following failed health check and no user jobs were impacted.
Details of severity level 1 incidentsNone this month.
MTBF and Serviceability
- 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
|Software problem (related to a user application, bug #775153)||2|
|MCA bank 1/4 error||1|
|HT lockup error||2|
|Admin down following failed health check||2|
|Failed 'xtbounce' during PM||1|
2: CoursesThis information is supplied by NAG Ltd
|Title of Course||Dates||Available Places||Ordinary Attendees||Paying Attendees||CSE Staff||Total Attending|
|Debugging, Profiling and Optimising, University of Reading||7 - 8 October 2011||20||15||0||0||15|
|Object Oriented Programming in Fortran 2003, NAG Manchester||11 - 13 October 2011||25||11||0||5||16|
3: Quality Tokens
|19 Oct 2011||* * * * *||Positive tokens - no user comments received||x01|
|24 Oct 2011||* * * * *||Positive tokens - no user comments received||e05|
|26 Oct 2011||* * * * *||Positive tokens - no user comments received||x01|
4: Hours Worked
5: Performance Metrics
|Technology throughput||7000 hours||8367 hours||8615 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
|Percentage of non-in-depth |
queries resolved within one day
|Number of SP FTEs||7.3||8.0||8.7||8.8|