Linux LVM 中出现的问题，解决方法如下：
# vgreduce --removemissing --force mirrvg
Couldn't find device with uuid 'qGxwdl-gtii-BXXF-OnKo-a72V-GfpX-IEQrmm'.
Couldn't find device with uuid 'qGxwdl-gtii-BXXF-OnKo-a72V-GfpX-IEQrmm'.
Couldn't find device with uuid 'qGxwdl-gtii-BXXF-OnKo-a72V-GfpX-IEQrmm'.
Couldn't find device with uuid 'qGxwdl-gtii-BXXF-OnKo-a72V-GfpX-IEQrmm'.
Couldn't find device with uuid 'qGxwdl-gtii-BXXF-OnKo-a72V-GfpX-IEQrmm'.
Couldn't find device with uuid 'qGxwdl-gtii-BXXF-OnKo-a72V-GfpX-IEQrmm'.
Couldn't find device with uuid 'qGxwdl-gtii-BXXF-OnKo-a72V-GfpX-IEQrmm'.
Couldn't find device with uuid 'qGxwdl-gtii-BXXF-OnKo-a72V-GfpX-IEQrmm'.
Volume group mirrvg metadata is inconsistent
Unable to determine mirror sync status of mirrvg/lvmirror1.
Volume group mirrvg metadata is inconsistent