3Com 3500 - Manual (Page 109)

system nvData save 109
If the information is incorrect or if a connection cannot be made with the
specified host, the system displays a message similar to this one:
Login incorrect.
Error: Transfer Timed Out
Error - I/O error while writing nonvolatile data
If a session is successfully opened, a system message notifies you of the
success or failure of your save, as in the following examples:
Success System NV data successfully stored on host 158.101.112.34.
Failure Saving system...transfer timed out.
Error - I/O error while writing nonvolatile data. Do you wish
to retry the save using the same parameters? (n,y) [y].
5 To save the data as proposed, enter y
If you enter n , the NV data is not saved and the previous menu appears.
The text of the failure message depends on the problem that the system
encountered while it saved the NV data.
At the end of a successful save, the system display returns to the previous
menu.