Re: random file corruption on NTFS

[darrin hodges]

Hi Tony,
the volume was previously a FAT32 before it was reformatted to NTFS.  I've wondered
about the drive being dodgy, is it that FAT32 is more leanient in terms of file errors?


thanks.
Darrin.

On 5/12/06, Tony Abernethy <[EMAIL PROTECTED]> wrote:

Wild guess, but that sounds a lot like a disk drive going bad.

An error message like The file or directory is corrupted and unreadable.

There is essentially no way that an application (including rsync)

can cause that kind of thing.

You probably can cause that by messing with the controller registers

or sticking strange stuff into the control or data lines.

A bad place on the disk (and it has to be pretty bad or you will not notice it)

or cables that aren't really plugged in

or a failing or very weak power supply are all potential causes.

 

Probably no way to know, but does it happen on the same sectors every time?

FAT32 is probably on a different drive, but

(essentially they are race conditions or timing errors)

working on one and failing on the other doesn't mean much.

Although,FAT32 is probably much less likely to lose you data

(I've seen NTFS "fixed" by wiping out a directory that was unreadable)

 

Curiously, backups have to be the standard place to discover you need the backup.

(while in the process of destroying the backup you need;)

-----Original Message-----
From: rsync-bounces+tony=[EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of darrin hodges
Sent: Friday, May 12, 2006 12:06 AM
To: rsync@lists.samba.org
Subject: random file corruption on NTFS

Hi,
We are using Rsync version 2.6.8  protocol version 29 on a winNT box to backup a linux (RedHat 9.0) box (same version of rsync) and everynight a different file on the NT server is reported as being corrupt, there are no errors in the rsync logs on either side.  NT Event log records:

Event Type: Error
Event Source: Ntfs
Event Category: Disk 
Event ID: 55
Date: 12/05/2006
Time: 3:05:19 AM
User: N/A
Computer: [ Deleted ]
Description:
The file system structure on the disk is corrupt and unusable. Please run the chkdsk utility on the volume TESTDATA.
 
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp .
Data:
0000: 00 00 04 00 02 00 52

we use BrightStor ARCserve Backup as backup software on the NT server, it reports:

Unable to open file. (FILE=F:\database\base_currency\country_list.frm, EC=The file or directory is corrupted and unreadable.)

The file reported is different every day, we have tried turning off the 'z' option, as that was causing an error when attempting to transfer large already compressed files but did not resolve  this particular problem.  We have noticed that the error does not occur on a FAT32  volume, is there a problem with rsync interacting with the NTFS?.

Thanks
Darrin.

 

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