Thanks for this one Paolo. :-) On Dec 9, 2010, at 9:19 AM, Paolo Falcone wrote:
> I've made changes in the mount options, along with tuning journaling > for ext4 filesystems, and so far have yet to encounter corruption > (lots of small and big files): > > * data=writeback > * nobarrier > * nobh > * noatime > * noauto_da_alloc > > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob;f=Documentation/filesystems/ext4.txt;h=7be02ac5fa36d7f4c07856fe9cf89391e08986f7;hb=HEAD > > Optimally though, it's not recommended if you'll use ext4 for lots of > small files (better use an embedded like sqlite for storing such). > > Using the default mount options though I've encountered massive file > corruption (and jettisoned usage of ext4 for quite some time). > > Paolo > > On Thu, Dec 9, 2010 at 8:57 AM, Jimmy Lim <[email protected]> wrote: >> I had a bad experience with ext4 on Archlinux, after fscking, all my files >> renamed to its actual inode number. >> Jimmy >> >> On Thu, Dec 9, 2010 at 8:22 AM, Michael Janapin <[email protected]> >> wrote: >>> >>> Ok. I'll try this. I haven't rebooted in a while. :-) >>> >>> In my search on the ubuntu forums, they call this the 'dreaded file >>> corruption in ext4'. >>> >>> So right now I'm thinking of migrating my large files to an XFS partition. >>> Sigh. >>> >>> Thanks. >>> On Dec 9, 2010, at 8:19 AM, Federico Sevilla III wrote: >>> >>>> Hi Mhac, >>>> >>>> Have you tried running fsck on your file system first to make sure it's >>>> okay? >>>> >>>> -- >>>> Federico Sevilla III, CISSP, CSM, LPIC-2 >>>> Chief Executive Officer >>>> F S 3 Consulting Inc. >>>> http://www.fs3.ph >>>> >>>> >>>> On Thu, 2010-12-09 at 06:00 +0800, Michael Janapin wrote: >>>>> I am experiencing a very weird behavior on my Ubuntu 10.04 box (with >>>>> ext4 as fs of my /). >>>>> I have several large iso files (3GB or more) and whenever I md5sum >>>>> them, it turns out different everytime. !? >>>>> I also experienced that when I copy/move a large file, it turns out >>>>> with a different md5sum in its new location. >>>>> Also when I scp/wget/ftp those files over the network, the md5 changes >>>>> again. >>>>> >>>>> This only happens with large files. The smaller ones have no problem. >>>>> Could it be with my file system? Or could it be something else? >>>>> >>>>> Thanks! >>>>> >>>>> Mhac J >>>>> _________________________________________________ >>>>> Philippine Linux Users' Group (PLUG) Mailing List >>>>> http://lists.linux.org.ph/mailman/listinfo/plug >>>>> Searchable Archives: http://archives.free.net.ph >>>> _________________________________________________ >>>> Philippine Linux Users' Group (PLUG) Mailing List >>>> http://lists.linux.org.ph/mailman/listinfo/plug >>>> Searchable Archives: http://archives.free.net.ph >>> >>> _________________________________________________ >>> Philippine Linux Users' Group (PLUG) Mailing List >>> http://lists.linux.org.ph/mailman/listinfo/plug >>> Searchable Archives: http://archives.free.net.ph >> >> >> _________________________________________________ >> Philippine Linux Users' Group (PLUG) Mailing List >> http://lists.linux.org.ph/mailman/listinfo/plug >> Searchable Archives: http://archives.free.net.ph >> > > > > -- > Paolo Alexis Falcone > > Cell: 63-917-508-4702 > SIP: 1-747-467-6906 > GTalk: pfalcone > YM: p.falcone > Skype: pfalcone > Gizmo5: paolo_falcone > _________________________________________________ > Philippine Linux Users' Group (PLUG) Mailing List > http://lists.linux.org.ph/mailman/listinfo/plug > Searchable Archives: http://archives.free.net.ph _________________________________________________ Philippine Linux Users' Group (PLUG) Mailing List http://lists.linux.org.ph/mailman/listinfo/plug Searchable Archives: http://archives.free.net.ph
