/tag/scratch
Reinstatement of file purging of personal /scratch files on Afton and Rivanna
On Sep 1, 2024 RC system engineers will reinstate a file purging policy for personal /scratch folders on the Afton and Rivanna high-performance computing (HPC) systems. From Sep 1 forward, scratch files that have not been accessed for over 90 days will be permanently deleted on a daily rolling basis. This is not a new policy; it is a reactivation of an established policy that follows general HPC best practices.
The /scratch filesystem is intended as a temporary work directory. It is not backed up and old files must be removed periodically to maintain a stable HPC environment.
Key Points: Purging of personal scratch files will start on Sep 1, 2024.
Scratch Recovery with Globus
Globus is a simple, reliable, and fast way to access and move your research data between systems. Researchers can transfer data from their old scratch directories to new scratch via a single web interface - no software download or installation is necessary.
Rivanna Storage
There are a variety of options for storing large-scale research data at UVa. Public and Internal Use data storage systems can be accessed from the Rivanna and Afton high performance computing systems.
Storage Directories Name Quota Price Data Protection Accessible from Best Practices /home 200GB Free 1-week snapshots Rivanna/Afton /home is best used as a working directory when using Rivanna/Afton interactively. Slurm jobs run against /home will be slower than those run against /scratch. The /home directory is a personal storage space that is not shareable with other users. /scratch 10TB Free No backups, Data removed 90 days after last file access time Rivanna/Afton /scratch is a high performance parallel filesystem that is suitable for large scale computational work.
`/scratch` Policy Enforcement
Beginning 10/14/2019 RC system engineers will begin actively clearing /scratch files that have not been accessed for 90 days. /scratch is intended as a temporary work directory (90 days maximum).
It is not backed up and needs to be purged periodically in order to maintain a stable HPC environment. We encourage users to back up their important data.
RC offers several low-cost storage options to researchers.
For more information about research computing storage options:
Visit our Storage Overview page. Learn more about specific storage features of Rivanna HPC.
