RAL Tier1 Operations Report for 16th July 2014
| Review of Issues during the week 9th to 16th July 2014.
|
- There have been recurring problems with the SRM processes for the castor GEN instance crashing since Friday (11th). This appears to be linked to a particular user and is under investigation.
- There was a problem with file transfers for Atlas but only affecting their functional test transfers. This was solved by Atlas.
- There were several cases where Atlas SRM servers were automatically restarted between Thursday and Saturday (10-12 July).
| Resolved Disk Server Issues
|
- On Wednesday 9th July GDSS546 (CMSTape - D0T1) crashed. It was returned to service on Friday (11th). The RAID array was reporting a problem - but no failed drives were found. One file was lost at the time the server crashed.
- On Thursday 10th July GDSS527 (CMSTape - D0T1) was taken out of srevice for a couple of hours to investigate why it did not see a replacement drive.
- On Sunday 13th July GDSS720 (AtlasDataDisk - D1T0) crashed. It was returned to service the next day (Monday 14th) although no fault was found. Fifteen files were lost at from the time the server crashed.
| Current operational status and issues
|
- We are still investigating xroot access to CMS Castor following the upgrade on the 17th June.
- There is a problem with the dteam SRM regional nagios tests, which may be caused by how dteam is published by the CIP.
| Ongoing Disk Server Issues
|
| Notable Changes made this last week.
|
- New CERN VOMS servers added.
- Castor re-pack instance being updated to version 2.1.14-13 (ongoing now).
| Service
|
Scheduled?
|
Outage/At Risk
|
Start
|
End
|
Duration
|
Reason
|
| perfsonar-ps01.gridpp.rl.ac.uk, perfsonar-ps02.gridpp.rl.ac.uk,
|
SCHEDULED
|
OUTAGE
|
14/07/2014 11:00
|
14/08/2014 11:00
|
31 days,
|
Systems being decommissioned. They have been replaced by lcgps01.gridpp.rl.ac.uk and lcgps02.gridpp.rl.ac.uk
|
| Advanced warning for other interventions
|
| The following items are being discussed and are still to be formally scheduled and announced.
|
- We are planning the termination of the FTS2 service (announced for 2nd September) now that almost all use is on FTS3.
- The FTS3 service will be updated (to v3.2.26) on Monday morning, 21st July.
- The core RAL site network will be updated to use RIP for network routing on Tuesday 22nd July.
Listing by category:
- Databases:
- Switch LFC/FTS/3D to new Database Infrastructure.
- Castor:
- Networking:
- Move switches connecting the 2011 disk servers batches onto the Tier1 mesh network.
- Make routing changes to allow the removal of the UKLight Router.
- Fabric
- We are phasing out the use of the software server used by the small VOs.
- Firmware updates on remaining EMC disk arrays (Castor, FTS/LFC)
- There will be circuit testing of the remaining (i.e. non-UPS) circuits in the machine room during 2014.
| Entries in GOC DB starting between the 9th and 16th July 2014.
|
| Service
|
Scheduled?
|
Outage/At Risk
|
Start
|
End
|
Duration
|
Reason
|
| perfsonar-ps01.gridpp.rl.ac.uk, perfsonar-ps02.gridpp.rl.ac.uk,
|
SCHEDULED
|
OUTAGE
|
14/07/2014 11:00
|
14/08/2014 11:00
|
31 days,
|
Systems being decommissioned. They have been replaced by lcgps01.gridpp.rl.ac.uk and lcgps02.gridpp.rl.ac.uk
|
| Castor GEN SRMs. (srm-alice, srm-biomed, srm-dteam, srm-hone, srm-ilc, srm-mice, srm-minos, srm-na62, srm-snoplus, srm-superb, srm-t2k)
|
UNSCHEDULED
|
WARNING
|
11/07/2014 17:10
|
14/07/2014 12:00
|
2 days, 18 hours and 50 minutes
|
There was a problem with the Castor GEN instance SRMs (Castor OK, but not the SRMs). Now improved. Setting a WARNING state over weekend.
|
| Castor GEN SRMs. (srm-alice, srm-biomed, srm-dteam, srm-hone, srm-ilc, srm-mice, srm-minos, srm-na62, srm-snoplus, srm-superb, srm-t2k)
|
UNSCHEDULED
|
OUTAGE
|
11/07/2014 13:00
|
11/07/2014 17:00
|
4 hours
|
We are invesitgating a problem with the Castor GEN instance SRMs. (Castor OK, but not the SRMs).
|
| srm-atlas.gridpp.rl.ac.uk,
|
SCHEDULED
|
OUTAGE
|
08/07/2014 06:00
|
09/07/2014 10:39
|
1 day, 4 hours and 39 minutes
|
Atlas Castor instance down for Castor 2.1.14 Stager Update
|
| Open GGUS Tickets (Snapshot during morning of meeting)
|
| GGUS ID |
Level |
Urgency |
State |
Creation |
Last Update |
VO |
Subject
|
| 106927
|
Green
|
Top Priority
|
Waiting Reply
|
2014-07-16
|
2014-07-16
|
|
GGUS Test alarm ticket
|
| 106802
|
Green
|
Less Urgent
|
In Progress
|
2014-07-11
|
2014-07-11
|
CMS
|
Several nodes contacting ILC/CMS VOs
|
| 106770
|
Green
|
Less Urgent
|
In Progress
|
2014-07-11
|
2014-07-14
|
enmr.eu
|
Unable to add software tags
|
| 106655
|
Green
|
Less Urgent
|
In Progress
|
2014-07-04
|
2014-07-10
|
Ops
|
[Rod Dashboard] Issues detected at RAL-LCG2 (srm-dteam)
|
| 106610
|
Green
|
Less Urgent
|
In Progress
|
2014-07-02
|
2014-07-02
|
HyperK
|
HyperK support
|
| 106324
|
Red
|
Urgent
|
In Progress
|
2014-06-18
|
2014-07-07
|
CMS
|
pilots losing network connections at T1_UK_RAL
|
| 105405
|
Red
|
Urgent
|
On Hold
|
2014-05-14
|
2014-07-01
|
|
please check your Vidyo router firewall configuration
|
Key: Atlas HC = Atlas HammerCloud (Queue ANALY_RAL_SL6, Template 508); CMS HC = CMS HammerCloud
| Day |
OPS |
Alice |
Atlas |
CMS |
LHCb |
Atlas HC |
CMS HC |
Comment
|
| 09/07/14 |
100 |
100 |
99.3 |
96.1 |
95.8 |
100 |
100 |
Central networking problem
|
| 10/07/14 |
100 |
100 |
98.0 |
100 |
100 |
97 |
100 |
srmServer restart.
|
| 11/07/14 |
100 |
100 |
98.0 |
100 |
100 |
97 |
100 |
srmServer restart.
|
| 12/07/14 |
100 |
100 |
100 |
100 |
100 |
99 |
99 |
|
| 13/07/14 |
100 |
100 |
100 |
100 |
100 |
100 |
99 |
|
| 14/07/14 |
100 |
100 |
100 |
100 |
100 |
99 |
100 |
|
| 15/07/14 |
100 |
100 |
100 |
100 |
100 |
99 |
99 |
|
