Dlpar动态迁移磁带机问题

描述：物理机做dlpar，有三个分区，一个外挂磁带机，目前磁带机在第一个分区，但是无法移动到另外两个分区，操作如下：

# lsdev -Cc tape
rmt0 Available 02-00-00 SAS 1/2-inch Cartridge Tape Drive
rmt1 Available 03-00-02 Other FC SCSI Tape Drive
rmt2 Available 03-00-02 Other FC SCSI Tape Drive
rmt3 Available 03-00-02 Other FC SCSI Tape Drive
rmt4 Available 03-00-02 Other FC SCSI Tape Drive

#  prtconf |grep rmt0
+ rmt0             U5802.001.9K8O764-P1-C5-T1-L0-L0                             SAS 1/2-inch Cartridge Tape Drive (1500000 MB)

# lsslot -c pci
# Slot                   Description                              Device(s)
U5802.001.9K8O764-P1-C2  PCI-E capable, Rev 1 slot with 8x lanes  ent0 ent1 ent2 ent3
U5802.001.9K8O764-P1-C5  PCI-E capable, Rev 1 slot with 8x lanes  sissas1
U5802.001.9K8O764-P1-C6  PCI-E capable, Rev 1 slot with 8x lanes  fcs0 fcs1

# lsdev -F parent -l rmt0
sas1

# lsdev -p sissas1
sas1  Available 02-00-00 Controller SAS Protocol
sata1 Available 02-00-00 Controller SATA Protocol



# rmdev -l sissas1 -R
Method error (/usr/lib/methods/ucfgdevice):
        0514-062 Cannot perform the requested function because the
                 specified device is busy.



删除提示busy，应该是因为sata1这个的问题吧？请问怎么处理呢？各位大侠

# lsdev -Cc tape
rmt0 Defined   02-00-00 SAS 1/2-inch Cartridge Tape Drive
rmt1 Available 03-00-02 Other FC SCSI Tape Drive
rmt2 Available 03-00-02 Other FC SCSI Tape Drive
rmt3 Available 03-00-02 Other FC SCSI Tape Drive
rmt4 Available 03-00-02 Other FC SCSI Tape Drive
这里看到rmt0磁带机已经defined的了，但是，无法把磁带机移动到别的分区

各位帮忙看看如何处理，谢谢了！