WARNING: Do this only in conjunction with Dot-Hill support. 

Note: Thanks to Jonathan McNerny for providing this information.

-Establish a serial connection to the controller.  Attempt both the manage/!manage and admin/!admin credentials.  If those fail move to the next step.

-From the serial connect you can see the serial number of the controller.  You can also physically pull the controller to read the serial number off the hardware itself.

#Example of serial connection showing serial number.

-Take the last 6 digits of the serial number and prepend them with ‘00C0FF’.  So the password for this controller would be ‘00C0FF1E5DEC’.  In this instance the serial number is the password – but that’s not true of all controllers/model and the password must be concatenated to gain access.

-Login with a user name (this is the part the varies from controller model and possible firmware level) and the password starting with 00C0FF and the last six digits of the serial number.

I know that valid user names can be ‘restoreddefaults’ , ‘restoredefaults users’, and ‘restoreusers’.  However it would be really nice to know which controller takes which user name – and if this is determined by controller model or the firmware loaded on the controller.

Here is what a restore of defaults looks like from the serial when successful.