Ext2 filesystem corrupts Photoshop files

drjeep · 11-08-2002, 08:28 AM

I'm hoping somebody can help me with this because I'm stumped...

We're running a Samba fileserver on our network where all work is backed up to. 2 80GB HD's, one for /home and another to backup /home. The other day I a designer asked me to restore a Photoshop .PSD file he deleted so I copied it from the backup to his home directory. Photoshop couldn't open this file for some reason so it must have become corrupted while making the backup. On the surface the file is exactly the same as the original, even the file size. The filesystem has no errors and the problem only seems to occur when doing recursive copies... and only with .PSD files as far as I can tell. All other files seem fine. This is the command I use to backup /home...

cp -av /home/* /mnt/hdb6

Any help would be much appreciated

Bert · 11-08-2002, 08:42 AM

Is this something like a nasraq running samba? Are you sure it doesn't corrupt other files?

drjeep · 11-08-2002, 09:02 AM

Well I didn't test all files, only PDF and ZIP. Text files also seem fine. When I go into a folder with PSD files and copy the files only (no recursion) everything works fine

It's a standard Intel PC running Samba on Redhat 7.1

Bert · 11-08-2002, 07:50 PM

You've run the standard medium checks - tried copying from the backup medium to another system (hint - if it's the Unix environment or cp command you're concerned about, get to know Cygwin for Windows) also have you looked at the PSD files on the Unix system to see if they're corrupt.

Corrupted files are usually one of three things:

1. Medium - scratched CDs, old disks etc.
2. broken transmissions over TCP/IP
3. Disk defragment in Windows

If you're administering these systems, you'll know about these though, but just check them.