WARNING - Possible Data Corruption

[bill perkins]

John Wendel wrote:
> 
> I just saw what appears to be a data corruption problem on one of my 
> boxes. I'm not sure at this point exactly whats happening, but I thought 
> I'd warn people that there might be a problem.
> 
> Software
> 
> Latest FC6 with updates as of last night, running 2.6.19.***. No LVM, no 
> raid, 3 drives, 1 IDE, 2 SATA.
> 
> Hardware
> 
> Older Intel P4 on a VIA based motherboard. This system has been totally 
> stable for about 2 years and I use it daily without seeing any problems.
> 
> [1] Seagate IDE drive on a VIA 8235 controller, system boots from this 
> disk and it holds the /home partition.
> 
> [2] Maxtor SATA drive on a Promise TX2300 controller mounted on "data2" 
> in my home directory.
> 
> What I saw
> 
> On the IDE drive, in my home directory, I have a directory ("DVD") 
> holding three dvd ISO images. I wanted to move the images to the SATA 
> drive because the IDE drive was getting full (80% used).
> 
> I copied ("cp -a DVD data2/DVD") the 3 DVD images (27 GB) from the IDE 
> drive to the SATA drive. After the copy, I did a "du" in the source and 
> destination directories. All of the destination files were smaller than 
> the source files. I checked /var/log/messages and didn't see any errors.
> 
> At that point, I had to leave for work, so I haven't done any more 
> investigation. When I get back home, I'll of course retry the copy.
> 
> Anybody got any clues about what I should look for / try next?
> 
> Thanks,
> 
> John
> 

I have found that disk usage varies with different sized disks- are the 
SATA drives considerably larger than the IDE drive you copied from?

-- 
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"The two most common things in the	| Bill Perkins
  universe are Hydrogen and Stupidity."	| perk at iag.net
					| programmer-at-large
		F. Zappa		| ALL assembly languages done here.
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