HECToR Monthly Report, April 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 April 2008 to 08:00 1 May 2008
Number of hours: 720
1: Availability
Scheduled down time: 8 hours 51 minutes
Incidents
The following incidents were recorded:
| Severity | Number |
| 1 | 6 |
| 2 | 2 |
| 3 | 29 |
| 4 | 1 |
Of the four severity levels, level 1 corresponds to a contractual failure.
Details of severity level 1 incidents
| ID | Date | Description | Length | Attribution |
| Incident-180 | 04/04/2008 | Service Node hector03 c0-0c0s2n0 failed | 05:58 | Cray |
| Incident-183 | 07/04/2008 | OST7 failure causing Lustre collapse | 07:58 | Cray |
| Incident-190 | 10/04/2008 | Service failure due to "portals" problem | 11:24 | Cray |
| Incident-191 | 12/04/2008 | IO module c2-1c0s6 failure disrupts HSN | 01:46 | Cray |
| Incident-207 | 26/04/2008 | Main PDU failure in cab c0-4 | 10:59 | Cray |
| Incident-211 | 28/04/2008 | Service close after "lustre" errors | 01:16 | Cray |
MTBF and Serviceability
| Attribution | Failures | MTBF | UDT | Serviceability |
| Cray | 6 | 122 | 39:21:00 | 94.6% |
| Site | 0 | ~ | 00:00:00 | 100% |
| External | 0 | ~ | 00:00:00 | 100% |
| Other | 0 | ~ | 00:00:00 | 100% |
| Overall | 6 | 122 | 39:21:00 | 94.6% |
- 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
3: Quality tokens
| Apr 18, 2008 1:07:59 PM | MR Laszlo Oroszlany | x x x | could not get pathscale working with help of manual/wiki |
| Apr 5, 2008 10:46:14 AM | Dr George N Barakos | * * * * | |
| Apr 1, 2008 12:57:50 PM | MR Laszlo Oroszlany | x |
4: Hours worked
| Group | Days worked | FTEs |
| USL | 83.4 | 4.4 |
| OSG | 64.5 | 3.6 |
5: Performance metrics
Technology Provision
| Description | TSL | FSL | Value |
| Technology reliability | 85% | 98.5% | 94.6% |
| Technology throughput | 7000 hours | 8367 hours | 8206 hours |
| Capability job completion rate | 70% | 90% | 95% |
| Technology MTBF | 100 hours | 126.4 hours | 122 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 | 8.3 |
| SP serviceability | 80% | 99% | 99.5% | 100% |
