Previously FoggyBottom said:
On Wed, 08 Dec 2004 07:40:51 -0500, "J. Clarke"
When they're in different machines in different locations????!!
It depends. If they share one common influence, e.g. same power net
with surges, being deliverd together and dropped during delivery,
all running far too hot in a hot country, all installed by the same
heavy-handed person, etc., the cause can be this common influence and
not a specific problem of the disks.
I think a good measure is how many disks were in the sample.
If it is 5/5 bad and no obvious common link it is likely a
problem with the disks. If it is 5/100 bad it is more likely
an outside problem. YMMV as usual.
There are no simple answers for this one, just indicators.
Determining the true cause(s) needs an intelligent human being,
which may still fail in many cases to find the true problem.
Arno