XrootD/Scalla suite Status

28-Apr-2008Fabrizio Furano - Scalla/xrootd status and features 2

28-Apr-2008Fabrizio Furano - Scalla/xrootd status and features 3

28-Apr-2008Fabrizio Furano - Scalla/xrootd status and features 4

28-Apr-2008Fabrizio Furano - Scalla/xrootd status and features 5

28-Apr-2008Fabrizio Furano - Scalla/xrootd status and features 6Courtesy of Gerardo Ganis (CERN PH-SFT)

28-Apr-2008Fabrizio Furano - Scalla/xrootd status and features 7Courtesy of Gerardo Ganis (CERN PH-SFT)

28-Apr-2008Fabrizio Furano - Scalla/xrootd status and features 8

ApplicationApplication

28-Apr-2008Fabrizio Furano - Scalla/xrootd status and features 9

Client1Client1

ServerServer

Client2Client2

Client3Client3

TCP (control)

Clients still seeOne Physical

connection perserver

Clients still seeOne Physical

connection perserver

TCP(data)

Async datagets

automaticallysplitted

Async datagets

automaticallysplitted

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Redirectorxrootd:1094

Name Spacexrootd:2094RedirectorRedirector

HostHost

ClientClientHostHost opendir

createmkdir

mvrm

rmdir

xrootd POSIX Client

Kernel

User Space

Appl

POSIX File System

InterfaceFUSE

FUSE/Xroot Interface

Should run cnsd on serversto capture non-FUSE events

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28-Apr-2008Fabrizio Furano - Scalla/xrootd status and features 20

cmsdcmsd

xrootdxrootdPragueNIHAM

… any other

cmsdcmsd

xrootdxrootd

CERN

cmsdcmsd

xrootdxrootd

ALICE global redirector (alirdr)all.role meta managerall.manager meta alirdr.cern.ch:1312root://alirdr.cern.ch/root://alirdr.cern.ch/

IncludesIncludesCERN, GSI, and othersCERN, GSI, and others

xroot clustersxroot clusters

Meta Managers can be geographically

replicatedCan have several in different places for region-aware load

balancing

cmsdcmsd

xrootdxrootd

GSIall.manager meta alirdr.cern.ch:1312 all.manager meta alirdr.cern.ch:1312 all.manager meta alirdr.cern.ch:1312all.role manager all.role manager all.role manager

28-Apr-2008Fabrizio Furano - Scalla/xrootd status and features 21

cmsdcmsd

xrootdxrootd PragueNIHAM

… any othercmsdcmsd

xrootdxrootd

CERN

cmsdcmsd

xrootdxrootd

ALICE global redirector

all.role meta managerall.manager meta alirdr.cern.ch:1312

all.role manager all.role manager all.role manager

Note:the security hats could require

you use xrootdnative proxy support

cmsdcmsd

xrootdxrootd

GSI

But missing a file?Ask to the global metamgr

Get it from any othercollaborating cluster

all.manager meta alirdr.cern.ch:1312 all.manager meta alirdr.cern.ch:1312 all.manager meta alirdr.cern.ch:1312

Local clients worknormally

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