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Troubleshooting Devices and Media
Chapter 12574
Troubleshooting Devices and Media
This section describes solutions to the following problems that can arise
while using backup devices:
• “Cannot Access Exchanger Control Device on Windows
2000/XP/Server 2003” on page 574
• “Device Open Problem” on page 575
• “Using Unsupported SCSI Adapters on Windows” on page 575
• “Medium Quality Statistics” on page 575
• “Medium Header Sanity Check” on page 577
• “Cannot Use Devices After Upgrading to Data Protector A.05.10” on
page 578
• “Other Common Problems” on page 579
Problems involving device SCSI addresses are explained in detail in
Appendix B of the HP OpenView Storage Data Protector Installation and
Licensing Guide.
Cannot Access Exchanger Control Device on Windows
2000/XP/Server 2003
Data Protector uses the SCSI mini-port driver to control backup drives
and libraries. Data Protector may fail to manage devices if other device
drivers are loaded on the same system. The error message Cannot
access exchanger control device appears when device operations
such as media formatting or scanning are started.
Action Run the <Data_Protector_home>\bin\devbra -dev command on the
system where the devices are located, to list all physical devices that are
configured on the system. If any of the SCSI addresses have the CLAIMED
status value, they are used by another device driver.
Disable the Windows 2000/XP/Server 2003 robotic driver. For detailed
steps, refer to the online Help index keyword “robotics drivers”.