I extended the Linear LVM without Unmounting the Logical Volume. But Most of the docs suggest to unmount the LVM in shrink process.
1. Is it possible to shrink the LVM at Runtime (with out Unmount). If yes, What is correct way to do it.
Also I found in some places that only few file system supports Runtime Extend and Shrink of LVM.
2. What are file systems supports LVM extend and shrink without Unmount