/mnt/home by default (default size 2 TiB), defined through spec.storage.homeDir in the SunkCluster resource. The mount is ReadWriteMany and is automatically mounted on every login pod and compute Node, so files written from one Node are visible from every other Node.
/mnt/data is a common convention used in CoreWeave tutorials, but it is not a default mount. To make it available, add it to spec.storage.additionalMounts when creating the cluster.
For details on configuring additional shared volumes, see Share storage across Slurm nodes and the SunkCluster storage reference.
Storage