Dell PowerVault 120T DDS4 User Guide - Page 28

Running the Dell Diagnostics Please see your system user's guide . Cleaning the Autoloader: The tape drive in the autoloader requires periodic cleaning. The frequency with which your drive should be cleaned depends how much the DDS cassettes(s) have been used for backup operations. Dell recommends that you use the following guidelines to determine when to clean your drive: 1.) When the "CleanReq" warning is shown on the LCD. 2.) If the DDS cassette has been used 12 hours or more, it is recommended that the drive be cleaned once every 24 hours of backup operation. You should also clean the drive if you get an error message during a backup operation. Use the cleaning cartridge that is provided to perform the following cleaning procedure: Sequential Mode: 1) Place the cleaning cartridge into one of the magazine slots (for example, slot 8) and insert the magazine into the autoloader. 2) Use the Select button to select the slot in which you placed the cleaning cartridge. The autoloader will automatically perform a cleaning cycle. 3) At the end of the cleaning cycle, the drive automatically ejects the cartridge and the autoloader replaces it in the magazine. Random Mode: 1) The host sends a MOVE MEDIUM command to move the cleaning cartridge from the magazine to the drive. 2) The drive will the automatically carry out a cleaning cycle. 3) The drive automatically ejects the cartridge when the cleaning cycle is complete. The autoloader returns the cartridge to its magazine slot. NOTES: If you still get an error message after performing the cleaning procedure, try the procedure a maximum of 5 more times. If the error message persists after 6 cleanings, the problem may not be related to cleaning. Try using another DDS cassette for backup operations instead. Dell PowerVault 120T DDS4 Autoloader User's Guide 4-3