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AMS02 Data Volume

AMS02 Data Volume. AMS/CASPUR Technical Meeting Bologna March 8, 2002. Alexei Klimentov. Outline. AMS02 data flow AMS 02 data volume Projected Characteristics for disks, processors and tapes AMS data storage issues. RT data Commanding Monitoring NRT Analysis.

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AMS02 Data Volume

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  1. AMS02 Data Volume AMS/CASPUR Technical Meeting Bologna March 8, 2002 Alexei Klimentov

  2. Outline • AMS02 data flow • AMS 02 data volume • Projected Characteristics for disks, processors and tapes • AMS data storage issues AMS/CASPUR Technical Meeing, Bologna, Mar 2002

  3. AMS/CASPUR Technical Meeing, Bologna, Mar 2002

  4. RT data Commanding Monitoring NRT Analysis POIC@MSFC AL POCC POCC HOSC Web Server and xterm XTerm commands Monitoring, H&S data Flight Ancillary data AMS science data (selected) cmds archive TReK WS “voice”loop Science Operations Center Science Operations Center TReK WS Video distribution External Communications PC Farm GSE GSE NRT Data Processing Primary storage Archiving Distribution Science Analysis AMS Data, NASA data, metadata Buffer data Retransmit To SOC GSE Production Farm MC production D S A e T r A v e r AMS Remote center Analysis Facilities Data Server MC production Data mirror archiving Analysis Facilities AMS Station AMS Station AMS Station AMS Ground Centers AMS/CASPUR Technical Meeing, Bologna, Mar 2002

  5. AMS Data Volume (Tbytes) STS91 AMS02 on ISS AMS/CASPUR Technical Meeing, Bologna, Mar 2002

  6. Oct 2001 • “AMS processing node” • AMD Atlon under RH Linux OS • Dual-CPU 1.5GHz (or higher) • 1 GB RAM • LVD SCSI disk (system and ASIS SW) • 3Ware IDE RAID Controller (8 channels) • 8 Western Digital 120GB IDE disks • 1x100 Mbit/s ethernet interface • 2x1 Gbit/s ethernet interface • Redundant power supplies Oct 1998 V.Choutko, AMS Computing , CERN Dec 2001 AMS/CASPUR Technical Meeing, Bologna, Mar 2002

  7. Projected characteristics for disks, processors and tapes • Gzip : gzipped data + disk cache + 16 dual-CPU PC/RAID • 52000GB x 1US$+5200GBx1US$+ 16x7000US$ = 169 kUS$, 1.7 US$/Gbyte • Data mirroring : data on disks + 9 dual-CPU PC/RAID • 104000GB x 1US$ + 9x7000US$ = 167 kUS$, 1.7 US$/Gbyte • Tape archiving : tape cartridges and tape loaders+disk cache + dual-CPU PC/RAID • 104000GB x 0.3US$x2 + 10400GB*1US$ +7000$ = 80 kUS$, 0.8 US$/Gbyte AMS/CASPUR Technical Meeing, Bologna, Mar 2002

  8. Initial Requirements to AMS staging and archiving system • Scalability Data Volume 2002 - 8 TB 2008 - 500 TB • HW Technology independent • Throughput 2TB/day 23MB/sec • … AMS/CASPUR Technical Meeing, Bologna, Mar 2002

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