Document scp for dataport nodes

- It is working again 

doc.zih.tu-dresden.de/docs/data_transfer/dataport_nodes.md

@@ -5,8 +5,7 @@ possible to transfer small files directly via the login nodes, they are not inte
 way. Furthermore, longer transfers will hit the CPU time limit on the login nodes, i.e. the process
 get killed. The **dataport nodes** have a better uplink (10 GBit/s) allowing for higher bandwidth.
 Note that you cannot log in via SSH to the dataport nodes, but only use
-<!-- [NT] currently not available:`scp`, -->
-`rsync` or `sftp` (incl. FTP-clients like e.g.
+`scp`, `rsync` or `sftp` (incl. FTP-clients like e.g.
 [FileZilla](https://filezilla-project.org/)) on them.
 
 The dataport nodes are reachable under the hostnames
@@ -17,6 +16,9 @@ The dataport nodes are reachable under the hostnames
 Through the usage of these dataport nodes, you can bring your data to ZIH HPC systems or get data
 from there - they have access to the different HPC
 [filesystems](../data_lifecycle/file_systems.md#recommendations-for-filesystem-usage).
+Please keep in mind that the different filesystems differ in capacity, IO-performance, and intended
+use cases. Choose the one that matches your needs.
+
 The following directories are accessible:
 
 - `/home`
@@ -30,10 +32,10 @@ The following directories are accessible:
 There are at least three tools to exchange data between your local workstation and ZIH systems. They
 are explained in the following section in more detail.
 
-!!! important
+!!! important "Premise: SSH configuration"
+
     The following explanations require that you have already set up your
     [SSH configuration](../access/ssh_login.md#configuring-default-parameters-for-ssh).
-<!-- [NT] scp currently not available
 
 ### SCP
 
@@ -72,7 +74,6 @@ in a directory, the option `-r` has to be specified.
     ```console
     marie@local$ scp -r dataport:output /tmp
     ```
--->
 
 ### SFTP