HP 20-Feb manual Troubleshooting Common Problems, System, Problem Solution

Troubleshooting Common Problems

This section includes information on troubleshooting common library problems. For problems that may be related to the host or application software, refer to the host system documentation, the application software instructions, and Host Software and Media Errors on page 128. If these procedures fail, contact your service representative for further assistance.

	Caution		Consult the system administrator before cycling power. Never
			cycle power when active devices are connected to the SCSI bus
			or Fibre Channel bus. Cycling power when the SCSI bus or
			Fibre Channel bus is active can cause data loss or hang the host
			system.
Table 27
	Troubleshooting Table
Problem			Solution
Power
Library will not power on.		■	Check all power cord connections.
		■ Make sure the power (standby) switch is on.
		■ Make sure there is power to the outlet by trying another
			working outlet.
		■ Verify that the LEDs on the back of the library are on and that
			the fans are turning to ensure the library is receiving power
			(Table 26 on page 139).
		■ If you have a multi-level library, swap power supplies with the
			one on the lowest level.
		■ Replace the power cord(s).
		■ Contact your service representative.
Power-on test failed. An error		■	Follow the recovery procedures from the library front panel.
message appears in the front		■	Note the error code and error code qualifier.
panel display.
			Contact your service representative.
		■

140 Troubleshooting Common Problems Chapter 4