There are limits on the number of concurrent interactive SSH sessions that you can run on a storage system, depending on the number of vFiler units allowed on that storage system.
A vFiler unit can have only one active interactive SSH session established at a time. For all the supported platforms in Data ONTAP 8.1, there can be a maximum of 32 concurrent active interactive SSH sessions.
After you have established the maximum number of interactive SSH sessions, you cannot start a new interactive SSH session until an active interactive SSH session is closed.
For example, a storage system with 65 vFiler units can have 32 concurrent active interactive SSH sessions. You cannot establish an interactive SSH session until one of the active interactive SSH sessions is closed.