On Tue, Jan 7, 2014 at 9:34 PM, James Knott <james.kn...@rogers.com> wrote: > John Hart wrote: >> When editing important files >> it's a good idea to keep incremental backups. When a file is saved >> with the same name, the original >> is effectively over written and won't be in the trash. > > IIRC, this is what the VAX 11/780 editor did automagically. Every time > you changed a file, you got a new version. >
On Windows we usually see NTFS as the file system. Maybe some FAT32, or even FAT on older USB sticks. But mailing NTFS. It is interesting to look at how the journaling works there: http://blogs.msdn.com/b/oldnewthing/archive/2013/01/01/10381556.aspx Note specifically that the file system pre-allocates the final size of the file, to make the file contiguous if possible, and then writes the file contents into the disk cache, which then writes to the disk. The blog talks about what happens if the USB key is pulled out too soon. The expected result is the same as what we often see: the file is the right size, but the contents are all zeros. This doesn't prove anything, but it is suggestive of the kinds of causes that can lead to the reported symptoms. Regard, -Rob > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@openoffice.apache.org > For additional commands, e-mail: users-h...@openoffice.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@openoffice.apache.org For additional commands, e-mail: users-h...@openoffice.apache.org
