Before large file support can be enabled on a cluster, the following prerequisites must be met:
- The cluster is running OneFS 8.2.2 or later.
- A 16 TiB file plus protection can consume no more than 10 percent of any disk pool, so the minimum disk pool size is 160 TiB plus protection and VHS reserved capacity.
Every node pool on the cluster must meet these requirements before configuration of large file support. Once large file support is enabled, files up to 16 TiB may exist on the system. Be aware that, once enabled on a cluster, large file support cannot be disabled.
Note: These size restrictions will be removed in a future release, allowing support for large (greater than 4 TiB) file sizes on all cluster configurations.
Note: For SyncIQ environments, all remote clusters must be running OneFS 8.2.2 or later and also satisfy the restrictions for the minimum disk pool size and SyncIQ policies. These requirements are covered in more detail in a later section of this paper.