On 2/21/2014 4:50 PM, Phoenix, Merka wrote:
Both the LV and the filesystem can be resized "on the fly" without rebooting, but you still have to unmount the filesystem first before resizing either.
this is not true for XFS, you can grow XFS online without unmounting it, with live activity. just extend the LV, then xfs_grow /path/to/volume and it picks up the new size and adjusts the file system to suit, live and on the fly.