Slices are created on demand and expire after two months. When a slice expires, it is destroyed. When a slice is destroyed, all files in the slice are removed on all nodes assigned to that slice.

The expiration date of a slice may be extended by using the Renew Slice form. There is no limit on the number of times a slice may be renewed, but the expiration date may never be set to more than two months into the future.

Slices also have resource limits. Disk space, memory usage, file descriptors, and bandwidth are controlled on a per-slice, per-node basis.