[ILUG] puzzle of the day: RHEL has files seemingly undoing edits

[Vincent Cunniffe]

Brendan Kehoe wrote:
> Many thanks for all the ideas!
> 
> - his logs show only:
> 
>    Feb 12 14:16:17 localhost smartd[3375]: Device: /dev/sda, 194 
> Currently unreadable (pending) sectors
>    Feb 12 14:16:17 localhost smartd[3375]: Device: /dev/sda, 194 Offline 
> uncorrectable sectors
> 
>  I've suggested he get the disk vendor's diagnostic program to figure 
> out if it's a low-level hardware problem.

The thought occurs that this could be the low-level disk maintenance 
functionality, automatically remapping broken sectors with some of the 
space unannounced ones, and somehow getting an older copy?

> - It happens with some files and not others.  He can't do anything to 
> make it happen deliberately.

This would tend to support the above... it's only happening on some 
physical bits of the disk.

Vin