Move documentation to slurm page

doc.zih.tu-dresden.de/docs/jobs_and_resources/slurm.md

@@ -561,3 +561,10 @@ following table.
 
     Node-local storage is not available on the two clusters [`Power9`](power9.md) and
     [`Julia`](julia.md).
+
+!!! hint Request nodes with local storage on `Barnard`
+
+    Note that most nodes on `Barnard` don't have a local disk and space in `/tmp` is **very**
+    limited. If you need a local disk request this with the
+    [Slurm feature](slurm.md#node-local-storage-in-jobs) `--constraint=local_disk` to
+    `sbatch`, `salloc`, and `srun`.