On 09/02/2010, Srihari k <harisult...@gmail.com> wrote: > On 09/02/2010, Syam Krishnan <sya...@gmail.com> wrote: >> On 02/09/2010 07:27 PM, Srihari k wrote: >>> >>> Distro: Ubuntu Karmic >>> filesystem in which the files is Ext4 >>> >> I guess the reason you mentioned Ext4 is that you've heard about the >> data loss problems with this file system! Thanks syam for mentioning that : i got to this http://www.h-online.com/open/news/item/Ext4-data-loss-explanations-and-workarounds-740671.html
here is the relevant part(i.e the workaround ): [...] Nevertheless, as a workaround, he very quickly wrote patches for Ext4 that recognise the rename() situation and ensure it behaves like Ext3, and a second procedure that uses ftruncate(). Now, however, he has provided a "proper" solution. **The new ext4 mounting option "alloc_on_commit" **gives Ext4 a mechanism analogous to "data=ordered"** in Ext3, whereby metadata is not committed in the journal until after blocks have been allocated and the data has been written. However, this change probably won't arrive until version 2.6.30 of the kernel at the earliest. [...] *But how can i set the option alloc_on_commit ?* -- Srihari K -- "Freedom is the only law". "Freedom Unplugged" http://www.ilug-tvm.org You received this message because you are subscribed to the Google Groups "ilug-tvm" group. To post to this group, send email to ilug-tvm@googlegroups.com To unsubscribe from this group, send email to ilug-tvm-unsubscr...@googlegroups.com For details visit the website: www.ilug-tvm.org or the google group page: http://groups.google.com/group/ilug-tvm?hl=en
