Viprion overrides management IP setup through tmsh

You do not need the delete command. You can just modify the IP via TMSH, the previous one will be over-ridden naturally.

Assuming your blade 2250 is in slot 3, you can change it's mgmt IP (aka. cluster member IP address) as follows:

1. Modify Mgmt.IP:

   tmsh modify sys cluster default members { 3 { address 1.2.3.4 } }

2. Save config:

   tmsh save sys conf

(note you must do these changes from your primary blade)