Hi,
You could use tripwire to check periodically all files instead of relay
on the file system for that task. (I think no file system does this
checking by now)
Jordi
Jeremy Sanders wrote:
Is there any sort of checksumming layer that could lie between the disk and
ext3, or be implemented as part of ext3/4?
We've just had a couple of drives recently where the drive started silently
corrupting the data without generating any I/O or SMART errors. This is
pretty disastrous as you don't necessarily find out about the corruption
until it is too late.
I imagine the overhead of such a layer wouldn't be that much. I would pay a
few percent performance for knowing that the data is not corrupt.
Jeremy
--
......................................................................
__
/ / Jordi Prats
C E / S / C A Dept. de Sistemes
/_/ Centre de Supercomputació de Catalunya
Gran Capità, 2-4 (Edifici Nexus) · 08034 Barcelona
T. 93 205 6464 · F. 93 205 6979 · jprats@xxxxxxxx
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