Are you trying to create a RAID with arcconf with a command, like this one :

arcconf CREATE 1 LOGICALDRIVE MAX 5 0 0 0 1 0 2

The Error

If you try to create a new RAID Adaptec with arcconf cli tool, you should encounter the following error :

Controllers found: 1
A selected device is not available for use.

Command aborted.

This error is a bit unclear, so we will try to give you some tips :
This message tells you that a device is invalid.
I encounter this error on 2 differents case :

Your #Channel #Device chain contains some invalid disk.

Your Device are not in a ready State.

Ready State

Run the following command :

arcconf getconfig 1 pd|egrep « Device #|State\>|Reported Location|Reported Channel|S.M.A.R.T. warnings »

If some your disk are not in « Ready » State, this is the reason of the failure.

For example if you encounter a Raw (Pass Through)

Please run :

arcconf TASK START 1 DEVICE ALL INITIALIZE

to make them Ready

Wrong Channel Device

Run the following command :

arcconf getconfig 1 pd|egrep « Device #|State\>|Reported Location|Reported Channel|S.M.A.R.T. warnings »

And check that you are using Reported Channel,Device(T:L) values, and not the #Device Id for example.