Fibre Channel Troubleshooting - Overland Tandberg NEO S Series Service Manual

NEO S-Series Library Service Manual
Problem
Bad/defective/contaminated
media.
Tape cartridge movement
Tape cartridge stuck in tape
drive.
Tape stuck in storage slot.

Fibre Channel Troubleshooting

Use the Status > Drive Status screen to check the link connection for your tape drive.
If the screen shows Logged Out:
• Verify that the correct Fibre speed is selected or is set to Automatic. If you are unsure of
the speed of the HBA or switch that the drive is connected to, try Automatic.
• Check that the correct port type is selected. Loop requires additional configuration. If
you are unsure of the correct port type, try Automatic.
If the screen shows No Link, the Speed Status is "–", and the Link LED on the back of the drive
is OFF:
• The speed is probably set incorrectly. Try setting the speed to Automatic.
• If there are still issues, change the port type to Auto Detect.
If the screen shows No Light:
• The cable is not plugged in correctly. Check that it is connected correctly to Port A of the
tape drive.
• The cable is damaged. FC cables are delicate. If the cable has been bent or twisted
sharply, it might be broken and must be replaced.
If the screen shows ALPA Conflict:
• There might be a conflict with the ALPA address on Loop ports. Select Soft for the Loop
mode to allow the system to select an available address each time the tape drive
connects to the FC fabric.
10400666-005
Solution
If the <Media Attention> LED is cleared and –although the tape drive has been
cleaned – immediately re-displays each time a particular tape is reloaded that
tape should be suspected as being defective.
• Export the tape and load a known good tape. In some cases, a tape can be worn
out, have a defective tape memory, or have been formatted as a Firmware
Upgrade Cartridge.
• Any tape that is suspected of being defective or contaminated should NOT be
reused in any drive.
• Power cycle the library, allow it to complete initialization, which in rare cases
can take as long as 10 minutes, and then retry unloading the tape using the
library operator control panel.
• Allow the tape drive to complete all operations. This may take as long as ten
minutes if you reset or cycle power up the library while the cartridge is
positioned at the physical end of the media.
• Make sure that the backup software is not reserving the slot or preventing the
tape drive from ejecting the tape. The backup software needs to cancel the
reservation and any hold it has on the tape drive. Temporarily disconnecting the
library from the host server and power cycling eliminates the host and its
software as a problem source.
• Contact your service representative.
See Remove Stuck Tape Cartridges.
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Library Troubleshooting
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