On Sat, Dec 26, 2009 at 4:31 PM, John O'Connor <j...@jpoc.org> wrote:
> Hi,
>
> I am getting some strange errors from an openBSD system that I am
> using as a backup server.
>
> I transfer some files onto the system via ftp. (1260 files with a
> total size of 60G.)
>
> The transfer works OK and then I try to check the newly arrived
> files.
>
> The last file in the set is an md5 file of the whole set.
>
> I now try:
>
> sum -c abc.md5 > result.txt
>
> I get an error.
>
> First, I see a number of IO errors and then finally a message that
> the file system is full. (It is not.)
>
> sum: abc.md5: read error: Input/output error
>
> /home2: write failed, file system is full
>
> So, I power the system down and then try to reboot. I get the same
> error and eventually, the system refuses to reboot claiming that
> one block on the disk cannot be read.
>
> I then moved the disk to a Win2K machine and ran a SMART monitor on
> the drive. The monitor reported that the drive was perfect - no
> bad sectors and no read errors.
>
> What can be going on here?
>
> It does not look like a disk error - surely SMART would notice it
> if it was?
>
> It does not look like a hardware error elsewhere in the system - I
> plugged in another drive and the checksums on that drive all
> turned out OK.
>
> I`m a bit stuck here. Any suggestions welcome.
>
> The system is based on a Gigabyte EP35 board and the drive is an
> almost new Samsung 1.5TB model. It is split into two partitions,
> first - where I see the error - is 820G and the second is the
> rest. I have tried ffs and ffs2 with the same result.
>
> jpoc
>
>
Have you considered the upload mode of FTP as a potential cause of errors?
Rather tarball.<fav compression type> the data and up load that,
extract and checksum?
I've seen similar issues when a mixture of binary and text files were
being up loaded to a
server in text only mode and the binary files committed suicide most
(but not all) of the
time.
--
"Opportunity is most often missed by people because it is dressed in
overalls and looks like work."
Thomas Alva Edison
Inventor of 1093 patents, including:
The light bulb, phonogram and motion pictures.
