Files on disk on the Fermi Xrootd cluster
Infrequently the xrootd servers are scanned to find all the files that are on disk. Instead of scanning everything below /glast the scan is split into the subdirectories
/glast/ASP, /glast/Data, /glast/bt, /glast/level0, /glast/mc
The result for each scan is stored in
/nfs/farm/g/glast/u15/xrootd/files_on_disk/<YYYYMMDD>/filelist<topdir>
where <YYYYMMDD> is the date the scan were taken and <topdir> is the directory it started ('/' replaced by '_'). For example the result for all files below /glast/mc is in
/nfs/farm/g/glast/u15/xrootd/files_on_disk/<YYYYMMDD>/filelist_glast_mc
The file foramt is:
size(Bytes) atime mtime ctime filename host [migrate-status]
The migrate-status field is optional with vaules:
status |
description |
|---|---|
-1 |
migrate status could not be determined (no lock file) |
0 |
not migrated |
1 |
migrated |
e.g. :
1461254 1185332890 1178747325 1178747325 /glast/mc/ServiceChallenge/backgndSC-GR-v11r2/merit/backgndSC-GR-v11r2-000008-merit.root sulky02