Hi Fathin,
Need a little bit more info for this.
Normally when a switch prompt with an > instead of an #, you should enter the commando "enable". You will be prompt to fill in the user name and password.
But when you use Aruba Central, it is also possible you have set an password in Aruba Central, that all depends the way you have configured Aruba Central. Did this switch joined an existing template group with other (configured)switches? Perhaps in this config a password is set.
You say that is has joined the VC, do you mean Virtual Controller? Because an HP2530 can not join an Virtual Controller, this is only for Instant access points.
When you use a GUI config in Aruba Central you can set the password under the switch config tab "System" -> "Access/DNS"

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Kevin de Leeuw
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