AIX's jfs still requires defragging. And it has a registry, I mean ODM. But it's technically a unix! The best of both worlds! On Mon, Sep 20, 2010 at 10:21 AM, Eric - A wrote: > I had a look at the "Disk Usage Analyzer" and the hard disk looks fine. I > am just used to DOS and defragging every month. Old habits are hard to > break. > > > . > Eric - A > . > > > ---------- Original Message ---------- > From: Eric Shubert > To: plug-discuss@lists.plug.phoenix.az.us > Subject: Re: Defrag > Date: Mon, 20 Sep 2010 09:11:42 -0700 > > Bryan O'Neal wrote: > > Many of you know my feelings on file fragmentation in linux. However > > Keven is correct that EXT4 is the only approved way to gain defrag > > functionality short of cleaning the drive and moving your files back > > in starting with the largest and most frequently accessed files. > > I presume by "defrag functionality" Bryan's talking generally about > filesystem optimization. Defrag is but one aspect of filesystem > optimization. > > Indeed, defrag of ext3 doesn't seem to be as much of a concern as with > FAT or NTFS. One way to defrag ext3 is to boot from a live CD, tar > everything off to an external device, reformat the filesystem (or remove > everything, but I thing reformatting might be faster), and tar > everything back. > > As Bryan hinted, if you could arrange the files in the tarball by > frequency of use, that would provide an additional level of optimization. > > There are a few other things you can do to improve ext3 performance. The > noatime mount option will reduce the writes required to the device. > There are also a few settings you can tweak with the tune2fs utility > that can improve performance, such as dir_index, which is useful if you > have any directories with a large number of files. > > Of course, have a look at ext4 for the latest developments in this area. > I haven't looked at ext4 in detail yet. > -- > -Eric 'shubes' > > > On Sun, Sep 19, 2010 at 1:21 PM, Kevin Faulkner > > wrote: > >> On Sunday 19 September 2010 07:19:05 Eric - A wrote: > >>> Hi All, I was wondering if I could defrag my hard drive under ubuntu > 10.04 > >>> ? > >>> > >> ext4 does have online defragmentation, however I don't think it is > available > >> for Ubuntu. > >> > https://ext4.wiki.kernel.org/index.php/Ext4_Howto#Online_defragmentation > >> > >>> . > >>> Eric - A > >>> . > >>> > >>> > >>> > >>> ____________________________________________________________ > >>> Get Free Email with Video Mail & Video Chat! > >>> http://www.juno.com/freeemail?refcd=JUTAGOUT1FREM0210 > >>> --------------------------------------------------- > >>> PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us > >>> To subscribe, unsubscribe, or to change your mail settings: > >>> http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss > >> --------------------------------------------------- > >> PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us > >> To subscribe, unsubscribe, or to change your mail settings: > >> http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss > >> > > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us > To subscribe, unsubscribe, or to change your mail settings: > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss > > > ____________________________________________________________ > Mortgage Rates Hit 3.25% > If you owe under $729k you probably qualify for Obama's Refi Program > http://thirdpartyoffers.juno.com/TGL3131/4c979866cc529ce25a2st06vuc > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us > To subscribe, unsubscribe, or to change your mail settings: > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss > -- James McPhee jmcphe@gmail.com