Re: Linux/XFS equivalents of defrag, chkdsk? [OFF-TOPIC]

[Joshua Schmidlkofer <kernel@xxxxxxxxxxxxxx>]

Michael Loftis wrote:

> --On Sunday, August 29, 2004 13:24 -0700 mike <mike@xxxxxxxxxx> wrote:
>
> > I want to ensure that my filesystems are always optimized as well as be
> > able to detect any possible filesystem-level issues ahead of time.
> >
> > I looked around the command line switches and manpages for the XFS and
> > fsck commands, and could not find anything relevant.
> >
> > So I bring it to this mailing list:
> >
> > Are there Linux equivalents for the XFS filesystem for chkdsk (fsck -n
> > seemed like the only possibility and it does not work) or defrag?
> >
> > Perhaps the way XFS runs, defrag is useless/not required. But it 
> > would be
> > nice to be able to check filesystem consistency (while it's mounted, so
> > it'd be read-only checking obviously) before something happens or while
> > it's not in the process of booting the machine.
>
>
> defrag was only really ever necessary on FAT and FAT32 systems.  it 
> can help NTFS some though.  


I don't know what you are doing here, but let me tell you: NTFS is a 
frag NIGHTMARE.  OMG. 
Windows XP is _better_ than NT* and 2k, but it fragments like there is 
no tomorrow.   Files,
directories, streams, MFTs - it is a mess.  I have never seen a serious 
use Windows file server
that did not need a regular [i.e. weekly at least] defrag schedule. 

Also, several of them make boot-time defrag.  This handles the Registry, 
AD, and the other areas
of NTFS that need it before being live.  This mostly chops boot time, 
but also makes things run
smoother in general.

===

All my XFS servers that have weekly light-use periods have xfs_fsr 
running from cron.  I don't know
that it is nessecary, but it seems preventative to me.

js