Difference between revisions of "Tier1 Operations Report 2015-01-28"
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* A test was carried on the problematic router during Thursday afternoon (22nd) when it failed within a few minutes of taking over as the master. A manual flip back to the other router was then carried out. This caused a 5-minute break in network connectivity to the Tier1. | * A test was carried on the problematic router during Thursday afternoon (22nd) when it failed within a few minutes of taking over as the master. A manual flip back to the other router was then carried out. This caused a 5-minute break in network connectivity to the Tier1. | ||
− | * There was a problem with the LHCb SRMs yesterday (Tuesday 27th Jan). | + | * There was a problem with the LHCb SRMs yesterday (Tuesday 27th Jan). Some processes didn't re-connect to the databases following required reboots to pick up security updates. |
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Revision as of 12:11, 28 January 2015
RAL Tier1 Operations Report for 28th January 2015
Review of Issues during the week 21st to 28th January 2015. |
- A test was carried on the problematic router during Thursday afternoon (22nd) when it failed within a few minutes of taking over as the master. A manual flip back to the other router was then carried out. This caused a 5-minute break in network connectivity to the Tier1.
- There was a problem with the LHCb SRMs yesterday (Tuesday 27th Jan). Some processes didn't re-connect to the databases following required reboots to pick up security updates.
Resolved Disk Server Issues |
- None
Current operational status and issues |
- We are running with a single router connecting the Tier1 network to the site network, rather than a resilient pair.
Ongoing Disk Server Issues |
- None
Notable Changes made this last week. |
- The safety checking of the electrical power circuits in the machine room has been completed.
- The migration of all data off T10000A & B media has been completed.
- On Friday (23rd Jan) the FTS3 srevice was upgraded to version 3.2.31.
- On Monday (26th Jan) some redundant Castor stager schemas were cleaned up.
Declared in the GOC DB |
Service | Scheduled? | Outage/At Risk | Start | End | Duration | Reason |
---|---|---|---|---|---|---|
Castor CMS & GEN instances (srm-alice, srm-biomed, srm-cms, srm-cms-disk, srm-dteam, srm-hone, srm-ilc, srm-mice, srm-minos, srm-na62, srm-pheno, srm-snoplus, srm-superb, srm-t2k. | SCHEDULED | WARNING | 29/01/2015 09:00 | 29/01/2015 16:00 | 7 hours | Warning while patching Castor disk servers |
srm-atlas.gridpp.rl.ac.uk, | SCHEDULED | WARNING | 28/01/2015 09:00 | 28/01/2015 16:00 | 7 hours | Warning while patching Castor disk servers |
Advanced warning for other interventions |
The following items are being discussed and are still to be formally scheduled and announced. |
- Investigate problems on the primary Tier1 router. Discussions with the vendor are ongoing.
- Track appropriate security updates.
- Move of connection for CERN Backup link on Tuesday 3rd Feb.
Listing by category:
- Databases:
- Application of Oracle PSU patches to database systems.
- A new database (Oracle RAC) has been set-up to host the Atlas 3D database. This is updated from CERN via Oracle GoldenGate. This system is yet to be brought into use. (Currently Atlas 3D/Frontier still uses the OGMA datase system, although this was also changed to update from CERN using Oracle Golden Gate.)
- Switch LFC/3D to new Database Infrastructure.
- Update to Oracle 11.2.0.4
- Castor:
- Update SRMs to new version (includes updating to SL6).
- Fix discrepancies were found in some of the Castor database tables and columns. (The issue has no operational impact.)
- Update Castor to 2.1-14-latest.
- Networking:
- Resolve problems with primary Tier1 Router
- Move switches connecting the 2011 disk servers batches onto the Tier1 mesh network.
- Make routing changes to allow the removal of the UKLight Router.
- Enable the RIP protocol for updating routing tables on the Tier1 routers. (Install patch to Router software).
- Fabric
- Firmware updates on remaining EMC disk arrays (Castor, FTS/LFC)
Entries in GOC DB starting between the 21st and 28th January 2015. |
Service | Scheduled? | Outage/At Risk | Start | End | Duration | Reason |
---|---|---|---|---|---|---|
srm-atlas.gridpp.rl.ac.uk, | SCHEDULED | WARNING | 28/01/2015 09:00 | 28/01/2015 16:00 | 7 hours | Warning while patching Castor disk servers |
srm-lhcb.gridpp.rl.ac.uk | SCHEDULED | WARNING | 27/01/2015 09:00 | 27/01/2015 11:52 | 2 hours and 52 minutes | Warning while patching Castor disk servers |
lcgfts3 | UNSCHEDULED | WARNING | 23/01/2015 10:00 | 23/01/2015 11:00 | 1 hour | Upgrade of FTS3 service to version 3.2.31 |
Whole site | SCHEDULED | WARNING | 20/01/2015 08:30 | 22/01/2015 18:00 | 2 days, 9 hours and 30 minutes | Warning during safety checks on power circuits in machine room. Testing carried out during working hours on each day. |
Open GGUS Tickets (Snapshot during morning of meeting) |
GGUS ID | Level | Urgency | State | Creation | Last Update | VO | Subject |
---|---|---|---|---|---|---|---|
111454 | Green | Less Urgent | In Progress | 2015-01-28 | 2015-01-28 | OPS | [Rod Dashboard] Issues detected at RAL-LCG2 |
111347 | Green | Urgent | Waiting Reply | 2015-01-22 | 2015-01-26 | CMS | T1_UK_RAL Consistency Check (January 2015) |
111120 | Green | Less Urgent | Waiting Reply | 2015-01-12 | 2015-01-22 | Atlas | large transfer errors from RAL-LCG2 to BNL-OSG2 |
109694 | Red | Urgent | On hold | 2014-11-03 | 2015-01-20 | SNO+ | gfal-copy failing for files at RAL |
108944 | Red | Urgent | In Progress | 2014-10-01 | 2015-01-27 | CMS | AAA access test failing at T1_UK_RAL |
107935 | Red | Less Urgent | On Hold | 2014-08-27 | 2015-01-20 | Atlas | BDII vs SRM inconsistent storage capacity numbers |
Availability Report |
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 |
---|---|---|---|---|---|---|---|---|
21/01/15 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | |
22/01/15 | 100 | 100 | 99 | 100 | 100 | 100 | 99 | Single SRM test failure - "Handling Timeout". |
23/01/15 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | |
24/01/15 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | |
25/01/15 | 100 | 100 | 100 | 100 | 96 | 100 | 97 | Single SRM test failure on 'list': No such file or directory |
26/01/15 | 100 | 100 | 100 | 100 | 100 | 100 | 98 | |
27/01/15 | 100 | 100 | 100 | 100 | 88 | 100 | 98 | SRM test failures - problem on SRMs after reboots for security update. |