STATUS OF KISTI TIER1 Sang-Un Ahn On behalf of the GSDC Tier1 Team WLCG Management Board 18 November 2014.

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Presentation transcript:

STATUS OF KISTI TIER1 Sang-Un Ahn On behalf of the GSDC Tier1 Team WLCG Management Board 18 November 2014

OUTLINE Operations Network Upgrade Plan Conclusion 2

OPERATIONS 3

Total wall clock hours for ALICE jobs in 2014 KISTI, 6.11 % (Including Tier-2 ) Jobs Apr 201Aug ,688 concurrent jobs = 28 kHS06 –84 nodes, 32 (logical) cores per node, 10.5 HS06/core Stable and smooth running –Few short incidents mostly due to the maintenance of undersea optical fibre link Completed 2M jobs in the last 6 months –More than total processed jobs in the last year (1.8M) ~ 2500 ~ 100 (Queued Agents)

Storage DISK Deployed 1000TB XRootD managed – 1 redirector, 9 storage nodes Pledges for 2014 fulfilled TAPE Deployed 1040 TB 8 Tape drives w/ total 2 GB/s throughput 260 Tapes, 4 TB per tape Pledges for 2014: 1,500 TB - purchasing additional media now Tape buffer pool – XRootD + TSM 2 redirector, 20x20TB servers (400 TB pool) 2 TSM server + 8 GPFS servers (200 TB pool) Total 600 TB Data migration with FRM (File Redundancy Manager) from XRootD to GPFS Using ITLM(IBM) policy integrated in GPFS towards backend storage 5

Site Availability/Reliability 100% Reliable for the last 6 month (from April to September) –Monthly Target for Reliability of ALICE test: 97% On track for a stable and reliable site –Participating in weekly WLCG operations meetings (2 times (Mon/Thu) per week): reporting operation- related issues ReliabilityAvailability Overall in 2014Last 6 monthsOverall in 2014Last 6 months ALICE99 %100 %98 %99 % 6 AprMayJunJulAugSep Reliability100 Availability ※ Few announced downtime for maintenance in May, June and July. Downtime announcement keeps sites reliable but cannot prevent them from being unavailable

Joining OPN LHCOPN Joining done in Jan 2014 perfSONAR instances are installed and fully functional Scheduled tests among WLCG Tier-1 sites 7 ※ For the moment, perfSONAR instances are down due to shellshock; to be re-installed with new release by December

NETWORK PLAN 8

Status Reports on Tier 1 in Korea9/14CERN-Korea Committee Meeting Network Upgrade Schedule  Funding has been secured with a lot of supports from Korean government.  Only administrative procedures are left. 10Gbps upgrade will be completed by March, 2015 at least before RUN2 starts Dec. Oct.Mar. 2015May RUN2 Buffer (2 mon) Complete Contract Upgrade (3 mon) 2 mon Tender Notification From Seo-Young CKC in Oct. 2014

Status Reports on Tier 1 in Korea10/14CERN-Korea Committee Meeting Planed 10Gbps Network 10Gbps Upgrade As-Is:  To-Be: 2G KREONET2 + 2G SURNet Dedicated Circuit 10G + 10G SURFnet Contracted provider will allocate the dedicated circuit 10G. From Seo-Young CKC in Oct. 2014

Conclusion WLCG Tier-1 at KISTI has been running stable Most reliable site in WLCG Fulfilled the requirements for Tier-1 and fully functional Computing and Storage resources Network: 10G will be at service by (at least) Mar 2015 regarding procurement process 11

THANK YOU 감사합니다 12