Compaq ProLiant 1000 User Guide: Online Storage Controller Recovery Option - Page 62

5-1 Chapter 5 Troubleshooting If you are unable to perform a task associated with OSCRO, make sure you have the privilege associated with the task. Other problems you encounter may relate to reconfigured hardware or upgrading software related to OSCRO, including Windows NT itself. Controllers Must Be Matched Setting up OSCRO requires that both members of a controller pair are capable of sharing a single instance of the device driver. For this reason, the Online Storage Controller Recovery Utility does not allow you to create a mismatched controller pair. Planning for OSCRO when RSO is in Use Because the Standby Recovery Server, On-Line Recovery Server, and OSCRO are mutually exclusive option solutions, an invalid configuration results from implementing OSCRO when one of the other Recovery Server Options has been installed and has not been de-installed. It is also important to understand that the cabling for the Standby Recovery Server and On-Line Recovery Server options is incompatible with OSCRO. The cables are the same type but they must be reconfigured for OSCRO. If the system already has one of the Recovery Server Options installed, you must reconfigure the cabling before implementing OSCRO. Incorrect Cabling There are several ways to cable OSCRO configurations that may appear correct but are incorrect. These cabling errors can lead to data loss if OSCRO is implemented and a controller fails. The examples that follow involve crossconnected, unilateral, and mismatched cabling. These configuration errors must be avoided. Online Storage Controller Recovery Option User Guide