删除镜像错误，请求帮忙

提示如下 ：

# lsdev -Ccdisk
hdisk0 Available 00-08-00 SAS Disk Drive
hdisk1 Available 00-08-00 SAS Disk Drive
# unmirrorvg rootvg hdisk1
# chpv -c hdisk1
# reducevg rootvg hdisk1
0516-016 ldeletepv: Cannot delete physical volume with allocated
        partitions. Use either migratepv to move the partitions or
        reducevg with the -d option to delete the partitions.
0516-884 reducevg: Unable to remove physical volume hdisk1.收起