CaFe Disk Space

Disk space allocation directories for the CaFe experiment.

Hall C cdaq-cluster filesystems

1. main directory (for online analyzer, DBs, replay scripts, etc.):

/home/cdaq/cafe-2022/ 

2. output directory (ROOTfiles, REPORT_OUTPUT, PDF files, etc.):

/net/cdaq/cdaql1data/cdaq/hallc-online-cafe2022/

NOTES

• Please do take special care to avoid modifying any files outside of your ~/cafe-2022 directory.
• File storage directories during the online analysis of CaFe.
• There is a README in the first directory with a few notes.
• It is recommended to make a '~/cafe-2022/go_analysis_cafe' shell script that sets up your environment from scratch. For example, no changes/additions to anything in ~/bin, changes to init files like .tcshrc, .bashrc, etc, text editor config files, etc.

Farm/CUE disk allocations

/volatile/hallc/c-cafe-2022/            ( 4 TB high quota; 2 TB guarantee )

NOTES

• Files are NOT backed-up
• Use for all large file output from analysis or simulation jobs. When guarantee threshold is exceeded it is possible to have files auto-cleaned up (removed). See policy: https://scicomp.jlab.org/docs/volatile_disk_pool
• Files you want to keep should be pushed to tape using jput

/work/hallc/c-cafe-2022/ directory ( 1TB  quota )

NOTES

• Files are NOT backed up.
• Good place for analysis software, database files, etc.
• These files should be in GitHub or have similar backups.
• Nothing that matters should be stored only on /work.

/group/c-cafe-2022/ directory     ( 100GB quota )

NOTES

• Backed up regularly.
• Best place for analysis/replay scripts; software that is being actively developed, etc. (But, still use GitHub!)

Tape allocations

/mss/hallc/c-cafe-2022/analysis

• tape volume for analysis output (ie. simulation output, replay output that you want to keep long-term, etc.)

/mss/hallc/c-cafe-2022/raw

• tape volume for raw data output (ie. production CODA files from the Hall)
• Raw data are NOT accessible directly from tape. To make them accessible, they must be copied over to cache.

Cache allocations

/cache/hallc/c-cafe-2022/analysis/

/cache/hallc/c-cafe-2022/raw/

NOTES

• During online analysis, raw data from tape will be automatically copied over to cache.
• Cache has a certain quota, which if it is exceeded, the user will have to use the 'jget' command to copy over the files from tape to cache.