I found this file:
HP ProLiant Servers Troubleshooting Guide
http://h10032.www1.hp.com/ctg/Manual/c00300504.pdf
At the page 113 my error is reported:
Controller State: The array controller contains one or more logical drives with a RAID level that is not supported in the current configuration… …Any configuration command (e.g. logical drive creation, array expansion, etc.) or modification to the controller will result in the loss of all existing data on the disabled volume(s). Action: Do one of the following: • If this message is observed after moving a configured array of drives from another controller, then upgrade the firmware on this controller. Also, check if the cache module is installed. Install the cache module if not present. If this doesn't solve the problem, power down the server and move the drives back to the original controller. • If this message is observed without any drive movement, check if the cache module has failed and replace it if required. If the problem persists, contact HP support ("Contacting HP" on page 185,"Contacting HP technical support or an authorized reseller" on page 185).
How can I check if the cache module is proprely installed or better if it is working with no errors?