Messages in this thread | ![/](/images/icornerl.gif) | | Subject | Re: New concept of ext3 disk checks | From | Lee Revell <> | Date | Thu, 12 Aug 2004 17:07:15 -0400 |
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On Thu, 2004-08-12 at 14:58, Bernd Eckenfels wrote:
> I am not sure why the softupdates are so reliable, that no fsck is needed
Softupdates were introduced to enhance performance by batching and deferring disk operations. I belive that initially, performance was the only consideration in determining what actually got written to disk when. All the BSD/OS manuals I read at my last job warn against enabling softupdates because data loss could occur.
Someone later realized that if you batch the disk operations in a way that considers the atomicity of the filesystem operations being implemented, softupdates can help *ensure* data integrity. This is a pretty recent development I think.
Lee
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