The following is a list of common hardware errors that occur in a SAN environment. If you find errors with your hardware, please contact your hardware vendor for specific instructions.

• Verify that the proper device drivers were installed.

• Verify that the fibre cable is securely connected to the HBA and the switch.

• Verify that the SCSI bridge is properly connected to the library and the switch. Apply normal SCSI troubleshooting techniques at the fibre to SCSI bridge. Use a bridge administration tool to verify that the bridge recognizes all of the devices. Also verify that the bridge firmware is up to date.

• If some of the servers in the SAN recognize the tape devices, but other servers do not, check for a failed hardware component between the server and the switch. If none of the servers in the SAN recognize the tape devices, check for a failed hardware component between the switch and the tape devices.

• Reset the SAN, which may identify problem hardware components and may resolve fibre problems.