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Infrequently the xrootd servers are scanned to find all the files that are on disk. Instead of scanning everything below /glast the The scan is split into listings for all of it subdirectories. directories below /glast:
/glast/ASP, /glast/Data, /glast/bt, /glast/level0, /glast/mc, ....
The results of the scans are stored in the directory
| Panel |
|---|
/nfs/farm/g/glast/u18/xrootd/files_on_disk/<YYYYMMDD> |
...
status | description |
|---|---|
-1 | migrate status could not be determined (no lock file) |
0 | not migrated |
1 | migrated |
e.g. :
1461254 1185332890 1178747325 1178747325 107536534 1243879126 1217984515 1217984515 /glast/mcASP/ServiceChallenge/backgndSC-GR-v11r2/merit/backgndSC-GR-v11r2-000008-merit.root sulky02 0DRP/PROD/DRP_daily_00005.tar.gz
The lines are sorted with respect to the data file names.
Command used to collect the data
Summary Information
The file listing directory contains also summaries files that show the disk usage by top level directories and some sub-directories. The two summary files are:
- usage_summary
usage for top level dirs (/glast/Data, /glast/mc,...) and some subdirs - usage_subdirs
usage for subdirs of /glast/Data/Flight, /glast/mc and /glast/mc/ServiceChallenge/
Command used to collect the data
The command SrvFlUsage will create the file listing for each server and produce the summaries:
> SrvFlUsage -a -r
The listing directory will be > SrvFileListing --outdir /nfs/farm/g/glast/u18/xrootd/files_on_disk/<YYYYMMDD> --cfg ~glastdat/config/filelisting.cf --cfg_section file_listing --migr
(ScaRunOnHosts -f glast -r -w -p – /u/gl/glastdat/releases/prod_admin/bin/ScaRunner ...)
> cd /nfs/farm/g/glast/u18/xrootd/files_on_disk/<YYYYMMDD>
> SrvFileListingCompact.sh