Subject: defragfs

[Russell Golden]

When i try using it, it always gives me an error saying something about 
the filesystem not being JFS. *shrug* not much stuff on my drives 
besides tons of packages, anwyay.
i've heard that Red Hat Linux defrags automatically if you're idle for x 
amount of time. is there any truth to that? it's always discontiguous 
the same amount every time i boot...

Tom Greaser wrote:

>what filesystem are you using ?
>quick google says NOT to try and defrag ext3.. tool seems out of date.
>here is an idea
>from a post...
>
> I've actually looked at this before, and found a few solutions, but
>quickly concluded that the programs in question (which had to be run
>offline) seemed a little too unmaintained and unreliable to test out on
>my partition. The best answer I've gotten from anyone so far is that
>yes, there is a program that can do this, and that program is tar. =) Of
>course, you'd need someplace to back everything up to. Then you can just
>untar everything onto a clean partition, possibly with these new patches
>in place in the kernel you use during the restore, but since tar is
>probably doing this linearly anyway, I doubt it would make much
>difference.
>
>Long story short, most people I've talked to have never had any problems
>with fragmented ext[23] filesystems. Sorry. 
>
>
> but if your using JFS
>
>http://publib.boulder.ibm.com/infocenter/pseries/index.jsp?topic=/com.ibm.aix.doc/cmds/aixcmds2/defragfs.htm
>
>guessing you need the jfs tools 
>
>  
>