XFS

[Bill Campbell]

On Fri, Oct 09, 2009, Jerry McBride wrote:
...
>
>A few years ago, when looking for a a better file system than ext2, I had a 
>long hard look at ext3. Part of it was some of the most brutal testing I have 
>ever done to a computer, in an effort to cause issues with an ext3 file 
>system. One test I did, was during a hard run on a mysql database, I would 
>simply "pull the plug"... after a reboot and a re-read of the journal, the 
>file system would come up with zero errors... time, after time, after time... 
>never a bit or byte out of place... From what I have read, and I admit this is 
>all "hear/read say",  XFS can and does die a horrible death with less than 
>that... 
>
>
>As for "middle ground"... there's always reiserfs... not the 4.x version. 

I've had reiserfs murder a few file systems after a crash,
(perhaps reflecting on its author :-).

We have lost data with xfs after a power failure with improper
shutdown, but not recently.  The only machine we have currently
running it is a SLES9-SP2 box with xfsprogs-2.6.25-0.6 as we have
been using ext3 on pretty much everything for several years now.

If I were building a large file server today, I would seriously
consider doing it on OpenSolaris using zfs as it has many very
useful features dealing with large file systems and arrays.
FreeBSD has zfs as well, but I'm a bit leary of that
implementation based on the number of comments I've seen on
FreeBSD mailing lists.  I was hoping that zfs would be available
on Apple's Snow Leopard as Leopard has read-only zfs, but it
seems to have completely disappeared.

Bill
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