pvmove works as follows！！！急救！！

Newsecond

pvmove works as follows:
       1. A temporary ’pvmove’ logical volume is created to store  details  of
       all the data movements required.

       2.  Every logical volume in the volume group is searched for contiguous
       data that need moving according to the  command        line  arguments.   For
       each  piece  of        data  found,  a new segment is added to the end of the
       pvmove LV.  This segment takes the form of a temporary mirror  to  copy
       the data from the original location to a newly-allocated location.  The
       original LV is updated to use the new temporary mirror segment  in  the
       pvmove LV instead of accessing the data directly.

       3. The volume group metadata is updated on disk.

       4.  The        first  segment        of  the pvmove logical volume is activated and
       starts to mirror the first part of the data.  Only one segment is  mir-
       rored at once as this is usually more efficient.

       5.  A daemon repeatedly checks progress at the specified time interval.
       When it detects that the first temporary mirror is in-sync,  it        breaks
       that  mirror  so that only the new location for that data gets used and
       writes a checkpoint into the volume group metadata on  disk.   Then  it
       activates the mirror for the next segment of the pvmove LV.

       6.  When         there are no more segments left to be mirrored, the temporary
       logical volume is removed and the volume group metadata is  updated  so
       that the logical volumes reflect the new data locations.

       Note that this new process cannot support the original LVM1 type of on-
       disk metadata.  Metadata can be converted using vgconvert(8).
高手能否抽出点时间帮我翻译一下....真的很难看懂..对我来说...

上面是man pvmove的里面内容.
现谢谢了,,,麻烦大家了