HP ProLiant DL120 G6 Server - Manual (Page 72)

Troubleshooting 72
DAT drives require cleaning every 8 to 25 hours of use or they may fail intermittently when using
marginal or bad media. Be sure you are following the proper cleaning procedures described in the
device and server documentation.
NOTE: New DAT tapes may contain debris that will contaminate the DAT drive read/write
head. If using new tapes for backup, clean the DAT drive frequently.
DAT drive is providing poor performance
Action: Be sure the drive is not being used to backup more data than is recommended for the drive. DAT
drives are designed with optimum and maximum data backup sizes. Refer to the drive documentation to
determine the appropriate data backup size for the drive.
Latest firmware indicates a defective tape, or head clogs occur regularly
Action: Replace the tape.
Other errors are occurring
Action: Replace the drive.
DLT drive problems
Server cannot write to tape
Action:
• If the drive cleaning light is on, clean the drive.
NOTE: DLT cleaning cartridges are good for only 20 uses. If the cleaning cartridge is near that
limit and the drive cleaning light is still on after running the cleaning cartridge, use a new cleaning
tape to clean the drive.
• If the tape is write protected, remove the write protection. If the tape still does not work, insert another
tape into the drive to see if the original tape is faulty.
• Refer to the tape drive documentation to be sure the type of tape being used is supported by the drive.
• Check each tape cartridge that has been used in the drive to verify its condition and inspect its tape
leader to verify it is not damaged and is in the correct position. After you locate any bad cartridges,
dispose of them. A working tape drive may drop its leader when using bad cartridges, indicating that
they need replacing. If bad cartridges are found, you will need to inspect the DLT drives leader
assembly.
o To examine the cartridge take-up leader, tilt the cartridge receiver door on the front of the drive and
look inside to see that the drive leader is connected to the buckling link-hook.
o To examine the drive take-up leader, tilt the cartridge receiver door on the front of the drive and look
inside to see that the drive leader is connected to the buckling link-hook, which should be engaged
in the leader slot.
DLT drive failure occurs
Action:
• Be sure the power and signal cables are properly connected.