xfs_growfs - expand an XFS filesystem
用于扩展 xfs 文件系统

DESCRIPTION

  1.    xfs_growfs expands an existing XFS filesystem  (see  xfs(5)).   The<br />       mount-point  argument  is  the  pathname of the directory where the<br />       filesystem is mounted. The block-device argument is the device name<br />       of  a mounted XFS filesystem.  The filesystem must be mounted to be<br />       grown (see mount(8)).  The existing contents of the filesystem  are<br />       undisturbed,  and  the added space becomes available for additional<br />       file storage.

OPTIONS

  1.    -d | -D size<br />              Specifies that the data section of the filesystem should  be<br />              grown.  If  the -D size option is given, the data section is<br />              grown to that size, otherwise the data section is  grown  to<br />              the  largest  size  possible with the -d option. The size is<br />              expressed in filesystem blocks.<br />当 `-d ` 没有被指定（使用），<br />默认状态下会让文件系统扩容到最大尺寸（逻辑卷的大小。