Fermi Xrootd Data Server

Xrootd is also referred to as SCALLA (Scalable Cluster Architecture for Low Latency Access) and xrootd is the daemon that provides the access to the data.

Xrootd Client Tools

• Using the client tools Xrootd Client Tools
• xrdcp xrootd copy program (link to SCALLA Wiki)
• xrd.pl  perl command line tool to stat, rm, .... files in xrootd

Xrootd Monitoring

• Ganglia Xrootd
• diskusage (simple table)
• Files on disk

• Files Backed up to HPSS
• FGST files added to HPSS
• Files added to HPSS

JIRA and Refernces

There are two bug tracking JIRA websites:

• Glast related Xrootd JIRA
• Xrootd development JIRA

There is also a xrootd (Scalla) Wiki and web site:

• Scala Wiki page
• Scalla/Xrootd home page