• Home and project directories on the EMC Isilon NAS (/user and /projects) are backed up to an offsite storage system by UB's Enterprise Infrastructure Services team.
    • Incremental backups occur daily.
    • Backups are retained for ONE MONTH.

NO OTHER USER DATA IS BACKED UP. This includes data residing in /tmp or /scratch on ANY server or compute node and the budget storage data space.   See this article for details on storage options

  • Faculty interested in backups of servers and clusters owned by their research group should contact the CCR staff for backup schedule and fee information.
  • Every effort will be made to retrieve requested data files from the backups, however we do not guarantee that the data can be recovered.  We strongly recommend you keep copies of your important data on your personal machine or external disk.
  • To request a file or directory be restored from backup tape, please submit a ticket to CCR help

Automatic Removal of Files from Temporary Storage

Temporary "scratch" space is available to users in several locations on the clusters for use during job execution.  This temporary space is not backed up and is subject to being automatically removed after it reaches one month old.  For fastest I/O, users can make use of local disk space in /scratch on all compute nodes.  This data is automatically deleted at the end of the running job to make room for the next job that runs on that node.  For additional space, users also have access to /gpfs/scratch.  Automatic removal of files older than 30 days takes place on a daily basis in /gpfs/scratch so please make sure to only use this as temporary storage.  You will also be asked to remove files if you are taking up more than your fair share of space in this filesystem.  Your user account privileges will be revoked if you make attempts to get around this rule (i.e. scripting the touching of files to keep them current).  If you have any questions about the use of these scratch spaces, please contact us via CCR help.


See this knowledgebase article for more information