--+ Tier1 and Tier-2 Weekly Report 2015-03-24
General News
- ADC and ATLAS Computing News [20150324]
- ADC Weekly meeting
- Rucio Clients
- Update on progress of implementing user-friendlier rucio client commands and richer outputs
- Discussion about improving documentation and tutorials
- Caution about too many handles for users to circumvent checks and procedures without some thought (e.g. rucio touch), especially given the new data model
- Some new suggestions from DAST shifters
- Syntax for transfer to scratch on a given cloud, for example. List of common use cases, all in one place
- Tutorial is great, but limited cases and dispersed.
- rucio list-datasets-rse needs to be more verbose, at least settably: number of replicas, timestamp (and sort by time or list created after a certain time), size (human-readable or not)
- dq2-finger replacement
- rucio touch for extending lifetimes
- HLT Status
- One ongoing task
- Brokerage issues – Mostly user created with bad memory and scout specifications
- Further problems upon merging
- Incomplete/missing/malformed steps (again, mostly user error)
- Being fed back into instructions
- PIC Tape System
- Use Enstore v4.2.2-3 (from FNAL)
- Tape drives (shared between all VOs; guaranteed minimum number of drives per experiment):
- T10KC - 8 drives (5.4 TB/tape, 240 MB/s write)
- LTO5 - 4 drives (1.5 TB/tape, 140 MB/s write)
- LTO4 - 11 drives (0.8 TB/tape, 120 MB/s write)
- Won't go into details here - CMS used tapes more than ATLAS last year (x3?)
- Led into discussion about tape file families and how this will play with the new rucio naming and data lifetime policies
- CA Cloud Squad Actions
- Open Issues and Ongoing Discussions
- WLCG and General Computing News
- Security News
- gLite/EMI News
- ROC_Canada News
ABCD Determination and Monitoring
SSB Results
SAM Results (based on VO tests)
APEL Accounting
- ACTION ITEM FOR SITES: Sites please regularly check and confirm that your historical APEL data has been published and looks correct when comparing with batch system utilization
APEL Synchronization Test Links
Production and Usage Status
--
Leslie Groer - 2015-03-24
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