July 29' 2010INDIA-CMS_meeting_BARC1 LHC Computing Grid Makrand Siddhabhatti DHEP, TIFR Mumbai

July 29' 2010INDIA-CMS_meeting_BARC2 Grid at a Glance  A computing system supports the heterogeneous environment of operating system termed as GRID.  Distribution managing the environment in a Grid called Middleware.  gLite : Lightweight Middleware for Grid Computing. gLite is a grid Middleware distribution mainly developed by EGEE (Enabling Grids for E-sciencE). gLite is a grid Middleware distribution mainly developed by EGEE (Enabling Grids for E-sciencE). Latest Released version of gLite is 3.2 compatible with Scientific Linux 5.

July 29' 2010INDIA-CMS_meeting_BARC3 Managing TIFR Computing Element Worker Node Batch Queues LRM Worker Node Batch Queues LRM Storage Element DPM SRM Pool Servers DPM SRM Pool Servers Monitoring Element : Publishing Static and Dynamic Information Monitoring Element : Publishing Static and Dynamic Information

July 29' 2010INDIA-CMS_meeting_BARC4 Storage (DPM+SRM)  Storage Elements Facilitates with : SRM (Storage Resource Manager) interface provides the combined view of whole storage to grid viewers & end users. SRM (Storage Resource Manager) interface provides the combined view of whole storage to grid viewers & end users. DPM(Disk Pool Manager) is an administration which manages the pool servers. DPM(Disk Pool Manager) is an administration which manages the pool servers. 18 high performance RAID6 configured pool servers 18 high performance RAID6 configured pool servers giving the aggregate storage capacity of giving the aggregate storage capacity of ~ 340 Tera Bytes. ~ 340 Tera Bytes. Road Map of Adding ~ 240 Tera Bytes of storage to existing one.

July 29' 2010INDIA-CMS_meeting_BARC5 With the help of SRM a view of Online Storage of IndiaCMS from GStat. ~15% storage space available

July 29' 2010INDIA-CMS_meeting_BARC6 PhEDEx – CMS Data Transfer  PhEDEx is short for Physics Experiment Data Export.  Tool is exclusively designed for CMS experiment for file transfer and data placement.  Tool is basically a front end for data manager / end users / system administrator to have a look of there respective prospective like... System Administrator: check Data Transfer Rates etc. System Administrator: check Data Transfer Rates etc. Data Manager: Approve / Deny Transfer Data Manager: Approve / Deny Transfer User: Transfer / Deletion Request User: Transfer / Deletion Request Transfers are highly dependent on proper functioning of network links.

July 29' 2010INDIA-CMS_meeting_BARC7 Data ?

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July 29' 2010INDIA-CMS_meeting_BARC11 T1_US_FNAL T1_TW_ASGC T2_US_NABRASKA T2_DE_RWTH T3_US_FNALLPC

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July 29' 2010INDIA-CMS_meeting_BARC13 T1_UK_RAL T1_US_FNAL T3_US_FNALLPC T1_DE_KIT T1_FR_CCIN2P3 T1_ES_PIC T1_TW_ASGC T1_IT_CNAF T1_CH_CERN

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