On Wed, 28 Jun 2006 13:40:15 +0100, T. Horsnell wrote:
I'm in the process of moving stuff from our Alpha fileserver onto
A
linux replacement. I've been using gnu-tar to copy filesystems from the
Alpha to to the Linux NFS-exported disks over a 1Gbit LAN, followed by
diff -r to check that they have copied correctly (I wish diff had an
option to not follow symlinks..). I've so far transferred about 3 TiB of
data (spread over several weeks) and am concerned that during this
process, 3 files were mis-copied without any apparent hardware-errors
being flagged. There was nothing unusual about these files, and
re-copying them (with cp) fixed the problem.
Are occasional undetected errors like this to be expected? I thought
there were sufficient stages of checksumming/parity (both boxes have ECC
memory) etc to render the probability of this to be vanishingly small.
I'd still consider running a good RAM test on both boxes.