CERN IT Department

CH-1211 Geneva 23

Switzerlandwww.cern.ch/

it

Katarzyna Dziedziniewicz-Wójcik, IT-DB

CASTOR databases overview

CERN IT Department

CH-1211 Geneva 23

Switzerlandwww.cern.ch/

it

CASTOR databases overview - 2

Agenda

• Performance overview• Migration status & plans• Q & A

CERN IT Department

CH-1211 Geneva 23

Switzerlandwww.cern.ch/

it

Performance

• Performance satisfactory and stable

• Nameserver

CASTOR databases overview - 3

CERN IT Department

CH-1211 Geneva 23

Switzerlandwww.cern.ch/

it

Stager performance

CASTOR databases overview - 4

PUBLIC

ATLAS

CERN IT Department

CH-1211 Geneva 23

Switzerlandwww.cern.ch/

it

SRM performance

CASTOR databases overview - 5

CMS

LHCB

CERN IT Department

CH-1211 Geneva 23

Switzerlandwww.cern.ch/

it

DLF Performance

CASTOR databases overview - 6

PUBLIC

ATLAS

CERN IT Department

CH-1211 Geneva 23

Switzerlandwww.cern.ch/

it

Upgrade status and plans

• Upgrade to 10.2.0.5 • DLF and PPS databases already upgraded• SRM and Stager databases to be upgraded

when Heavy Ions run is finished (December)• Nameserver database to be upgraded during

January technical stop• Standard optimizer & statistics gathering to

be stress-tested to review the possibility of removing hints

CASTOR databases overview - 7

CERN IT Department

CH-1211 Geneva 23

Switzerlandwww.cern.ch/

it

New hardware plans

• SRM, Stager and DLF databases are to be migrated and consolidated

• Where: Gen3 machines: 48GBs RAM

Intel Xeon 8 * 2.27 GHz• When: January/February • Possible consolidation plans

• By experiment – 3 node cluster containing STAGER, SRM and DLF

• By DB type – separate clusters for SRM/Stagers and DLFs

CASTOR databases overview - 8

CERN IT Department

CH-1211 Geneva 23

Switzerlandwww.cern.ch/

it

Q & A

CASTOR databases overview - 9