使用TSM 软件驱动连接带库，有的时候出现Device busy，问题如何解决？

如下面这个情况：
# ./tsmdlst

IBM TIVOLI STORAGE MANAGER by IBM
Device List Utility Program for AIX
Licensed Materials - Property of IBM

(C) Copyright IBM Corporation 2009. All rights reserved.
U.S. Government Users Restricted Rights - Use, duplication or disclosure
restricted by GSA ADP Schedule Contract with IBM Corporation.

TSM Device Name Vendor Product ID Firmware World Wide Name Serial Number

/dev/lb0 ADIC Scalar i500 648G N/A ADICA0C0043B23_LLA

TSM Device Name Vendor Product ID Firmware World Wide Name Serial Number

/dev/mt0 HP Ultrium 6-SCSI J3LZ 50:03:08:c3:a1:f0:e0:00 F3A1F0E000
/dev/mt1 HP Ultrium 6-SCSI J3LZ 50:03:08:c3:a1:f0:e0:04 F3A1F0E004
/dev/mt2 HP Ultrium 6-SCSI J3LZ 50:03:08:c3:a1:f0:e0:90 F3A1F0E090
Error opening /dev/mt3: Device busy
/dev/mt4 HP Ultrium 6-SCSI J3KZ 50:03:08:c3:a1:f0:e0:98 F3A1F0E098
Error opening /dev/mt5: Device busy

很多时候在使用tsm 自身驱动连接带库使用就会出现这个问题，大家有什么好的办法解决此类问题呢。

在识别硬件的时候可以使用./cfgwpardd 命令解决，那么有什么办法可以在线删除呢。