Hi,
Can someone enlighten me what the issue is with XFS? I've been hearing a lot of
good things on the Net about XFS. How it's lightening fast, how it has features
other file systems do not have (like GRIO, real time volumes, allocate on
flush, etc), how it scales very well, etc... but what I didn't hear about is
how fast XFS screws things up if something wrong happens. Because of the good
things I heard about XFS, I too decided to try it out (been using Ext3 or
ReiserFS here for most of the time). Now I'm very disappointed in XFS. I live
in an area where power outages are common and I do not have an UPS here. I have
a few computers all running on XFS and thought that XFS will give me similar
data-integrity like Ext3 or ReiserFS. Now, for the past few weeks I've been
experiencing "strange behavior" from XFS. One time, I was reading an article on
the Net and had only my Firefox browser open. Then we had a power outage for a
short period of time, and when I logged in again into
KDE, I was surprised to find out that all my desktop icons were messed up all
over the place. The other time, again power outage, only this time I was
working on a small text file. Booted up again only to find out that the file I
was working on contained garbage and I had to start all over again.
I also heard that XFS depends heavily on the application side for its
data-integrity. XFS "thinks" that the application will use the proper calls
when writing to disk. What???? How is it the task of the application to ensure
the safety of your files??? IMO, programs are there to provide the tools to be
productive, NOT to ensure the data safety of your files, that's the task of the
file system. Even MySQL provides me with better data-integrity here. If I'm
doing some database transaction and the power fails, I can be pretty sure that
*most* of the time, MySQL will be just fine next time I boot up.
Why oh why such a beautiful file system like XFS is so terrible at
data-integrity? Look what Sun Microsystems did with their new ZFS file
system... full atomicity, CRC checksumming and other features to ensure
data-integrity... why can't XFS have such things?
Thanks for listening to my preaching here guys
Cheers!
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