Journalling FS and Soft Updates comparision

Xin LI delphij at
Tue Feb 15 19:51:46 PST 2005

Hi, David,

在 2005-02-15二的 22:35 -0500,David Rhodus写道:
> > Softupdates really aren't a whole lot different from journalling.  Both
> No, journalling and soft updates are orthogonal technologies; they
> do not solve the same problem space, although there is some minor
> overlap.  Soft updates is not able to solve all the problems which
> journaling can.

Would you please give some examples?  I think a file system journalling
is different from what we have seen in applications, e.g. databases,
since the primary goal of having a journal is to make the file system
recoverable to last checkpoint, is that correct, or maybe I have missed


Xin LI <delphij delphij net>
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