And if you want to give yourself a fright, have multiple device managers open and then change the admin password in one switch that is part of one large fabric (all switches connected via inband management) using the CLI. By doing that you are unable to save any changes by using the Device Managers. It took me a few moments to figure out what I had done but it did cause me great concern for some time. I got the same message as you did.

Stephen

Thanks for everyone's help. Looks as if the problem was a different password had been set up on the new switch. Once I made them all the same i could see the new switch on my left side SAN. On my right side which is supposed to be set up the same as the left I am getting 'segmented VSAN messages' and the switch is isolated. But at least I've got a bit further. Thanks for everyone's help so far.

Segmented VSAN messages may occur if you do not trunk the VSAN across the ISL (make sure that it is in the allowed VSAN list) or if you do not have any port yet up in the VSAN on the new switch.

As for passwords, you may consider using TACACS or Radius. This will automatically give you the same userid/password combinations on all switches and you'll also be able to use advanced security feature like password tokens with one-time passwords etc.

Ralf

Thanks for your help. I plugged a couple of disk fibres onto the new switch and the segmented messages went. Thanks again for your help.