214 Troubleshooting the Tape Library
T016
T016 - Unexpected Drive Type
Description GUI Description: A configured drive sled has been replaced with a drive sled 
of different type. 
Explanation: When the library is attempting to determine the type of a drive 
and verify its physical presence in the library, it detects a drive type that is not 
compatible with the logical library assignment of the drive slot (for example, an 
LTO-1 drive in an LTO-3 drive position or the like).
Detection Scenarios • Installation of a tape drive into a library drive slot triggers the library to 
discover it.
• Bootup causes the library to physically discover any tape drive that is 
electrically connected in the system. 
Root Causes • End user or CE mistakenly uses the actual wrong type of CRU (for example, 
LTO-1 drive sled in a slot defined as LTO-3).
• Manufacturing defect has wrong label type for actual physical drive type (for 
example, LTO-1 label on an LTO-3 drive).
Note: Inability to communicate between the LCB and the scanner should 
result in a different RAS ticket cause.
Service Resolution 
Steps
1 Perform RR001 - Remove and Replace Drive Sled
 on page 420.
2 Check to make sure you installed the correct drive type for the slot. Check 
the label on the tape drive to be sure it correctly identifies the tape drive type.
Possible CRUs/FRUs Note: Read and perform all resolution steps before dispatching any parts.
Dispatch the first part listed below for replacement. If this does not solve the 
problem, dispatch the second part, and so on, in order. Dispatch only one part 
(or set of parts) at a time. 
1Drive Sled