Resizing XFS partition and external journal

[Lee Go-Tze <leegotze@yahoo.com>]

Dear list,

Can someone explain why it's not a good idea to
use xfs_growfs on a mounted XFS file system?
Is there a plan to make it work?  Isn't this the
preferred way to grow a XFS partition when the
support is in place from LVM to integrate with 
file system?

A separate question on external journal.  I heard
it is possible to use an external journal with XFS, 
can someone confirm this? And how can I do it?
If the external journal is supported will it
be possible to store it in a NVRAM disk (like
ext3fs external journal)?

Thanks for you reply.

Gotze

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