Ratio: 1TB Quota to 625,000 iNodes
An inode is a record that describes a file, directory, or link. This information is stored in a dedicated flash pool on Taiga and is of a finite capacity. To ensure that the inode pool does not run out of space before the capacity pools, this quota ratio is implemented. So for example if your project has a 10TB quota on Taiga, it will also have a quota of 6.25 million inodes. If you have any questions about this ratio please contact the storage team by opening a support ticket.
File System Block Size: 1 MB
For a balance of throughput performance and file space efficiency, a block size of 1MB has been chosen for the ScoutFS file system that acts as the Granite front end disk cache.
There are currently three different methods that will be implemented to store and retrieve data, Globus, SCP, and a DR Solution the SET team provides.
Globus is a third party service NCSA uses to leverages across a number of it's storage systems.
Granite is accessible via Globus at the endpoint name "NCSA Granite" and the endpoint is open to the public internet for transfers from anywhere with another Globus endpoint. Authentication to the endpoint is handled by NCSA's CILogon service and requires two-factor via Duo. For shared collections, or other questions submit a ticket to help+globus@ncsa.illinois.edu. Information about Globus can be found at their site https://www.globus.org
This method leverages the native linux secure copy tool scp to ingest data into the archive cache.
DR-Backup