The SDCC hosts a CernVM-FS (CVMFS) Stratum Zero service for hosting and publishing experiment software. Note that in order to make use of this service, you must first gain approval from your experiment liaison, who will communicate to the SDCC that your account should be enabled for writing to your CVMFS repository.
Two write hosts, cvmfswrite0{6,7}.sdcc.bnl.gov, have been enabled with special partitions and mechanisms to allow authorized experiment members to write into their respective repositories. To use this service:
The RCF runs backups on selected Network File System (NFS) and Andrew File System (AFS) file systems on a nightly basis. These backups are for site disaster recovery only. Data restoration is available for approved requests only. If restoration is required, users should contact their Experiment Liaison to see if they meet the requirements for a special restoration request.
Note: In general, files are retrievable within 30 days of loss.
AFS
The rhic.bnl.gov and usatlas.bnl.gov AFS cells are backed up daily.
Selected NFS file systems at the RACF have implemented quotas. Using the generic UNIX quota command will work.
Querying quotas on NFS file systems
To query quota information on file systems, follow these steps:
A history of the organization and facility management.
Options for travel
- By car from airports, ferry docks and New York City
- By LIRR train from New York City (final stop is Ronkonkoma station--taxis are available for hire at Ronkonkoma to complete the trip to BNL)
- By Airtrain from JFK -- transfer to LIRR train at Jamaica station (final stop is Ronkonkoma station)
General Directions to Hotels (and from Hotels
Submit Machine Software
The CRS software consists of a pair of daemons that run as the reco-users on dedicated submit machines (currently rcrsuser1 for PHENIX / rcrsuser3 for STAR) in conjunction with the Condor batch software. One daemon is simply a logserver that writes log-messages from the running jobs to a folder in the reco-user's (local) home directory.
Job Statuses
- CREATED
- In the CRS system but not a candidate to run, not seen by submit-daemon yet
- QUEUED
- Submitted to the negotiator, will eventually run
- STAGING
- If inputs require staging, job will enter this stage
- SUBMITTED
- All stage-files (if any) are ready, submitted to condor
- IMPORTING
- Condor job is running, processing the input files
- RUNNING
- All input files staged to node, job executing now
- EXPORTING
- Job exes ended,
Important Upcoming Dates for US Operations
- Oct 4-8, 2021: WLCG-DOMA Data Challenge
- Oct 11-15, 2021: WLCG-DOMA Tape Challenge
- Dec 2021: VOMS-Admin interface shutdown
- Feb 2022: OSG ends support for the Grid Community Toolkit (OSG 3
Links to related information that may be of interest.
