Re: question about possibility of data loss in Ext2/3 file system

[Sam Vilain]

Theodore Ts'o wrote:
> > I always liked Sun's approach to this in Online Disk Suite - journal at 
> > the block device level rather than the FS / application level. 
> > Something I haven't seen from the Linux md-utils or DM.
> You can do data block journalling in ext3.  But the performance impact
> can be significant for some work loads.   TNSFAAFL.

Sure, but on a large system with a big array, you just move the journal 
to a seperate diskset.  That can make a big speed improvement for those 
types of update patterns where you care about always applying updates 
sequentially, such as a filesystem or a database.

Sam.
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