Action recommended 
Additional 
information 
Check if the media is stuck in the drive (not visible 
behind door). 
Click here for 
information on media 
jammed and unable to 
eject. 
Try a forced eject to remove the media (press and 
hold in the Eject button for 10 seconds). Allow one 
minute for the tape to eject. 
Click here for 
information on media 
jammed and unable to 
eject. 
Test media in L&TT using Media Validation Test from 
Tests drop down list. 
Run Device Analysis Test from Test drop down menu 
in HP Library and Tape Tools (L&TT). Follow any 
troubleshooting given with the test results. 
Upgrade to latest firmware. 
NOTE:  
Due to issues in development Library and Tape 
Tools cannot be reliably used to diagnose 
potential issues with the DAT 40 Hotplug drive 
(Q1546A only). This problem is currently being 
investigated and will be corrected in the next 
revision of Library and Tape tools. This note 
will be updated once the problem has been 
corrected but until then do not use Library and 
Tape Tools to diagnose issues with this 
product. This problem only relates to the 
Q1546A product, no other DAT 40 variants are 
affected. 
Click here for 
information on HP 
Library and Tape Tools. 
If the tape ejects, inspect the media and discard if 
faulty or damaged. Check for the following:  
o  Incorrect label placement.  
o  Damage.  
o  Usage in incorrect environment.  
o  Snapped/damaged tape.  
Click here for 
information on how to 
detect a damaged DDS 
cartridge and what 
symptoms would be 
seen. 
Click here for 
information on visually 
inspecting HP DDS 
media. 
Click here for 
information on DDS 
media label placement.