Why do you expect the power to fail on production server ?
If it fails then it can not be termed as production environment , also as
mathew said Raiser fs significantly hit's the prformence of the system .
I have raiserfs on /dev/hdb the disk write and read doesnot go beyon 4 mb per
sec where as older drive give me 14 mb per sec on ext2.
>
Ibm has come out with concept of journaling but It not implimented in solaris
(exepet vxfs) and hpux yet , iheard sgi porting irix filesystem to
linux.
>
until it happens i stick to ext2 , i don't mind doing fsck on os hard drive as
my data is in fileservers .
>
> >
> > ReiserFS is a _journaling_ file system (and has other interesting
> > benefits that are of use mainly to developers, not so much
> > users/administrators).
> >
> > Noting that it "does not take time after power off without
> > propershutdown" is truley an understatement. Since it is a journaling
> > filesystem, it keeps a journal of file system changes before actually
> > making them. What this means is if it is not cleanly unmounted, you are
> > *far, far* less likely to experience file corruption. And true, because
> > of the journal, it does mount very quickly after an unsafe shutdown
> > which is of HUGE benefit if you have a server with a couple hundred
> > gigabytes or even a couple terrabytes of data. Running e2fsck on such
> > large disks could take hours.
>
> J.
> Actually ext3 offers data journalling (for early versions of ext3 data
> journaling was non-optional) but the preformance hit is very significant.
>
> > ReiserFS is also noted as quite stable at this point and worthy of
> > production servers. Some distributions (SuSE comes to mind) are now
> > supporting it even during installation.
>
> Stable in the sence of "this software will not crash" yes but less so in the
> sence of version X will be compatible with version Y. But these caveats are
> well noted and are just things to be aware of not things to stop you putting
> it into production.
>
> > There are other offerings presently, including a path which adds
> > journaling to ext2fs, as well as IBM's JFS. I'm not aware of their
> > statuses.
>
> Also XFS from SGI. All 3 are in a "it works but don't come crying to us"
> stage of development.
>
> M.
>
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