Maybe you need a vacation.
2014/1/8 Rob Weir <[email protected]> > On Tue, Jan 7, 2014 at 9:34 PM, James Knott <[email protected]> > 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: [email protected] > > For additional commands, e-mail: [email protected] > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > >
