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THIS IS A WORK IN PROGRESS; Changes to architecture,writing and policy should be expected before project launch!

Capacity to inode Ratio

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.  

Block Size on Cache

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. The default

Blockk Size on Tape