Every notebook in your account automatically includes a persistent filesystem. Use this directory to store datasets, model checkpoints, and more. Learn more here. Gradient also includes a public datasets repository.
This is persistent storage which is an NFS mount of a volume on a storage server. This quota/size is determined by the team subscription so can range from 5GB up to 1TB. Contact sales if you need to increase this limit beyond what is available with the default subscription plans.