Beob Kyun KIM, Christophe BONNAUD {kyun, NSDC / KISTI
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1 Beob Kyun KIM, Christophe BONNAUD {kyun, NSDC / KISTI 1 1
2 2
3 Belle Data Transfer Metadata Extraction Scalability Test Metadata Replication Grid-awaring of Belle data Test on Grid Env. KEK KISTI Currently, 147TB data are archived SRMDoor & Disk Pool (SEDPM) File registration to SE without copy Registration to LFC Co-test with SE & LFC Job submission to Grid ( with access to AMGA, SE, LFC ) 93% of planned done SRM Door & Disk Pool Done File Registration to SE Done Registration to LFC Done for KEK & NSDC Test with SE & LFC Simple test done Outside test done Basic Test was successful Every Testers should have grid cert. and Belle VO membership What Next? Any other Belle2 SW tests on Grid? 3
4 dpmp1.sdfarm.kr by GPFS, 170TB (147TB is occupied by bdata) Now, in reorganizing to use IBRIX instead of GPFS glite 3.2 se1.sdfarm.kr 1G connection to outside & disk pool glite 3.2, DPM_mysql Around 290,0000 : : lfc.sdfarm.kr (glite 3.1, mysql base) Both LFCs have identical entries which are mapped to se1.sdfarm.kr ce02.sdfarm.kr is tuned to accept Belle VO jobs 4
5 There are some works that should be done manually. See the above link. Registration to SRM Door & SRM Pool was done in around 4 hours Registration to LFC takes much more time, several days. Registration to LFC@KEK took more time compared to that to LFC@NSDC This might come from Network Latency and load of LFC@KEK LFC@NSDC is only for Belle VO (Virtual Machine) 5
6 [ui-alice] > voms-proxy-init --voms belle Enter GRID pass phrase: Your identity: /C=KR/O=KISTI/O=GRID/O=KISTI/CN= Beob Kyum Kim Creating temporary proxy... Done Contacting voms.cc.kek.jp:15020 [/C=JP/O=KEK/OU=CRC/CN=host/voms.cc.kek.jp] "belle" Done Creating proxy... Done Your proxy is valid until Mon May 3 20:51: [ui-alice] /home/kyun/11-belle/lfc@kek > echo $LFC_HOST lfc.sdfarm.kr Proxy-init Set LFC_HOST [ui-alice] /home/kyun/11-belle/lfc@kek > lcg-cp --vo belle lfn:/grid/belle/mcprod/dat/e000041/evtgen/charged/00/all/0311/on_resonance/00/evtgen-charged-00- all-e000041r b _0738.mdst file:////home/kyun/11-belle/lfc@kek/test0503-nsdc File copy [ui-alice] /home/kyun/11-belle/lfc@kek > export LFC_HOST=kek2-lfc.cc.kek.jp [ui-alice] /home/kyun/11-belle/lfc@kek > echo $LFC_HOST kek2-lfc.cc.kek.jp [ui-alice] /home/kyun/11-belle/lfc@kek > lcg-cp --vo belle lfn:/grid/belle/mcprod/dat/e000041/evtgen/charged/00/all/0311/on_resonance/00/evtgen-charged-00- all-e000041r b _0738.mdst file:////home/kyun/11-belle/lfc@kek/test0503-kek [ui-alice] /home/kyun/11-belle/lfc@kek > ll total rw-rw-r-- 1 kyun kyun May 3 08:52 test0503-nsdc -rw-rw-r-- 1 kyun kyun May 3 08:54 test0503-kek 6
7 On Hardware, should be stable and strong Is being used by several users On Virtual Machine, flexible but not sure on its stability For local test, its performance seems reasonable To local desktop machine Because of network latency and load of copy to desktop (from takes a little more time, but no serious diff. on time. To other desktop machine (outside of NSDC) Need outside tester to test copy from LFC It is done by Thomas KUHR 7
8 Virtual Machine [gridka25] ~ $ export LFC_HOST=lfc.sdfarm.kr [gridka25] ~ $ time lcg-cp --vo belle lfn:/grid/belle/mcprod/dat/e000041/evtgen/charged/00/all/0311/on_resonance/00/evtgencharged-00-all-e000041r b _0738.mdst file:////tmp/test0503-kisti real user sys 121m42.441s 0m4.897s 0m11.094s Physical Machine [gridka25] ~ $ export LFC_HOST=kek2-lfc.cc.kek.jp [gridka25] ~ $ time lcg-cp --vo belle lfn:/grid/belle/mcprod/dat/e000041/evtgen/charged/00/all/0311/on_resonance/00/evtgencharged-00-all-e000041r b _0738.mdst file:////tmp/test0503-kek real user sys 122m37.946s 0m5.179s 0m11.496s Seems Good! 8
9 304 cores in total 248 cores are enabled for Belle VO Shared by other experiments In 2 months, we will have more concrete number of nodes for Belle We will add more nodes into this cluster and shared portion by each experiment will be decreased. $VO_BELLE_SW_DIR = /belle $VO_BELLE_DEFAULT_SE = se1.sdfarm.kr 9
10 For the Belle data migration to new storage, we need around 2 weeks. We expect, it will finish by 6/25 New storage have 5 Parallel File Servers (IBRIX, commercial software) 5 servers will balance their loads SRM is the client of those PFSs 10
11 General Contact : nsdc@nsdc.kr Project Leader : Haengjin JANG, hjjang@kisti.re.kr 11 11
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