More often then expected - it is necessary to connect to the Filer using SSH or Telnet. Console access using a serial cable is not always an option - nevertheless the NetApp is supporting those interactive session - but with some limitations.

• 1 Console Session using Serial Port
• 1 SSH/Telnet Session which is interactive and "talks" to you ;) ssh [-1|-2] [-6] -l username {IP_addr|hostname}
• Unlimited number of Telnet/SSH non-interactive session - that means using SSH to fire up a command on the Netapp ssh [-1|-2] [-6] -l username {IP_addr|hostname} command

Therefor - tell your colleagues to logout from the SSH session if they do not need it any more :) or do set the SSH/Telnet timeout properly.