Several levels of data storage are provided for Armis, varying by capacity, I/O rate, and longevity of storage. Nothing is backed up, except AFS. Please contact hpc-support@umich.edu with any questions.

Storage type / location Description Best Used For Access and Policy Details
/tmp
Local directory unique to each node. Not shared. High-speed read and writes for small files (less than 10GB) System will automatically delete data here 30 days after date of creation
/home
Shared across the entire cluster. Only for use with currently running jobs. Quota of 10GB per user. Currently running jobs.  To check your quota, use armis-userquota -s
/scratch
Turbo-based  file system shared across all Armis nodes. /scratch is temporary storage only, and is purged periodically by ARC-TS admins. Large data for active jobs.
Turbo
Users who need long-term storage can purchase it from Turbo Research Storage, which is a high-speed storage service providing NFSv3 and NFSv4 access. It is available only for research data. Storing research data. ARC-TS Turbo page